diff options
Diffstat (limited to '')
| -rw-r--r-- | include/arch/aarch32/arch.h | 801 | ||||
| -rw-r--r-- | include/arch/aarch32/arch_features.h | 190 | ||||
| -rw-r--r-- | include/arch/aarch32/arch_helpers.h | 488 | ||||
| -rw-r--r-- | include/arch/aarch32/asm_macros.S | 244 | ||||
| -rw-r--r-- | include/arch/aarch32/assert_macros.S | 26 | ||||
| -rw-r--r-- | include/arch/aarch32/console_macros.S | 59 | ||||
| -rw-r--r-- | include/arch/aarch32/el3_common_macros.S | 455 | ||||
| -rw-r--r-- | include/arch/aarch32/smccc_helpers.h | 177 | ||||
| -rw-r--r-- | include/arch/aarch32/smccc_macros.S | 241 | ||||
| -rw-r--r-- | include/arch/aarch64/arch.h | 1437 | ||||
| -rw-r--r-- | include/arch/aarch64/arch_features.h | 293 | ||||
| -rw-r--r-- | include/arch/aarch64/arch_helpers.h | 749 | ||||
| -rw-r--r-- | include/arch/aarch64/asm_macros.S | 320 | ||||
| -rw-r--r-- | include/arch/aarch64/assert_macros.S | 29 | ||||
| -rw-r--r-- | include/arch/aarch64/console_macros.S | 61 | ||||
| -rw-r--r-- | include/arch/aarch64/el2_common_macros.S | 418 | ||||
| -rw-r--r-- | include/arch/aarch64/el3_common_macros.S | 464 | ||||
| -rw-r--r-- | include/arch/aarch64/smccc_helpers.h | 162 |
18 files changed, 6614 insertions, 0 deletions
diff --git a/include/arch/aarch32/arch.h b/include/arch/aarch32/arch.h new file mode 100644 index 0000000..a711753 --- /dev/null +++ b/include/arch/aarch32/arch.h @@ -0,0 +1,801 @@ +/* + * Copyright (c) 2016-2023, Arm Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ARCH_H +#define ARCH_H + +#include <lib/utils_def.h> + +/******************************************************************************* + * MIDR bit definitions + ******************************************************************************/ +#define MIDR_IMPL_MASK U(0xff) +#define MIDR_IMPL_SHIFT U(24) +#define MIDR_VAR_SHIFT U(20) +#define MIDR_VAR_BITS U(4) +#define MIDR_VAR_MASK U(0xf) +#define MIDR_REV_SHIFT U(0) +#define MIDR_REV_BITS U(4) +#define MIDR_REV_MASK U(0xf) +#define MIDR_PN_MASK U(0xfff) +#define MIDR_PN_SHIFT U(4) + +/******************************************************************************* + * MPIDR macros + ******************************************************************************/ +#define MPIDR_MT_MASK (U(1) << 24) +#define MPIDR_CPU_MASK MPIDR_AFFLVL_MASK +#define MPIDR_CLUSTER_MASK (MPIDR_AFFLVL_MASK << MPIDR_AFFINITY_BITS) +#define MPIDR_AFFINITY_BITS U(8) +#define MPIDR_AFFLVL_MASK U(0xff) +#define MPIDR_AFFLVL_SHIFT U(3) +#define MPIDR_AFF0_SHIFT U(0) +#define MPIDR_AFF1_SHIFT U(8) +#define MPIDR_AFF2_SHIFT U(16) +#define MPIDR_AFF_SHIFT(_n) MPIDR_AFF##_n##_SHIFT +#define MPIDR_AFFINITY_MASK U(0x00ffffff) +#define MPIDR_AFFLVL0 U(0) +#define MPIDR_AFFLVL1 U(1) +#define MPIDR_AFFLVL2 U(2) +#define MPIDR_AFFLVL(_n) MPIDR_AFFLVL##_n + +#define MPIDR_AFFLVL0_VAL(mpidr) \ + (((mpidr) >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK) +#define MPIDR_AFFLVL1_VAL(mpidr) \ + (((mpidr) >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK) +#define MPIDR_AFFLVL2_VAL(mpidr) \ + (((mpidr) >> MPIDR_AFF2_SHIFT) & MPIDR_AFFLVL_MASK) +#define MPIDR_AFFLVL3_VAL(mpidr) U(0) + +#define MPIDR_AFF_ID(mpid, n) \ + (((mpid) >> MPIDR_AFF_SHIFT(n)) & MPIDR_AFFLVL_MASK) + +#define MPID_MASK (MPIDR_MT_MASK |\ + (MPIDR_AFFLVL_MASK << MPIDR_AFF2_SHIFT)|\ + (MPIDR_AFFLVL_MASK << MPIDR_AFF1_SHIFT)|\ + (MPIDR_AFFLVL_MASK << MPIDR_AFF0_SHIFT)) + +/* + * An invalid MPID. This value can be used by functions that return an MPID to + * indicate an error. + */ +#define INVALID_MPID U(0xFFFFFFFF) + +/* + * The MPIDR_MAX_AFFLVL count starts from 0. Take care to + * add one while using this macro to define array sizes. + */ +#define MPIDR_MAX_AFFLVL U(2) + +/* Data Cache set/way op type defines */ +#define DC_OP_ISW U(0x0) +#define DC_OP_CISW U(0x1) +#if ERRATA_A53_827319 +#define DC_OP_CSW DC_OP_CISW +#else +#define DC_OP_CSW U(0x2) +#endif + +/******************************************************************************* + * Generic timer memory mapped registers & offsets + ******************************************************************************/ +#define CNTCR_OFF U(0x000) +/* Counter Count Value Lower register */ +#define CNTCVL_OFF U(0x008) +/* Counter Count Value Upper register */ +#define CNTCVU_OFF U(0x00C) +#define CNTFID_OFF U(0x020) + +#define CNTCR_EN (U(1) << 0) +#define CNTCR_HDBG (U(1) << 1) +#define CNTCR_FCREQ(x) ((x) << 8) + +/******************************************************************************* + * System register bit definitions + ******************************************************************************/ +/* CLIDR definitions */ +#define LOUIS_SHIFT U(21) +#define LOC_SHIFT U(24) +#define CLIDR_FIELD_WIDTH U(3) + +/* CSSELR definitions */ +#define LEVEL_SHIFT U(1) + +/* ID_DFR0 definitions */ +#define ID_DFR0_PERFMON_SHIFT U(24) +#define ID_DFR0_PERFMON_MASK U(0xf) +#define ID_DFR0_PERFMON_PMUV3 U(3) +#define ID_DFR0_PERFMON_PMUV3P5 U(6) +#define ID_DFR0_COPTRC_SHIFT U(12) +#define ID_DFR0_COPTRC_MASK U(0xf) +#define ID_DFR0_COPTRC_SUPPORTED U(1) +#define ID_DFR0_COPTRC_LENGTH U(4) +#define ID_DFR0_TRACEFILT_SHIFT U(28) +#define ID_DFR0_TRACEFILT_MASK U(0xf) +#define ID_DFR0_TRACEFILT_SUPPORTED U(1) +#define ID_DFR0_TRACEFILT_LENGTH U(4) + +/* ID_DFR1_EL1 definitions */ +#define ID_DFR1_MTPMU_SHIFT U(0) +#define ID_DFR1_MTPMU_MASK U(0xf) +#define ID_DFR1_MTPMU_SUPPORTED U(1) +#define ID_DFR1_MTPMU_DISABLED U(15) + +/* ID_MMFR3 definitions */ +#define ID_MMFR3_PAN_SHIFT U(16) +#define ID_MMFR3_PAN_MASK U(0xf) + +/* ID_MMFR4 definitions */ +#define ID_MMFR4_CNP_SHIFT U(12) +#define ID_MMFR4_CNP_LENGTH U(4) +#define ID_MMFR4_CNP_MASK U(0xf) + +#define ID_MMFR4_CCIDX_SHIFT U(24) +#define ID_MMFR4_CCIDX_LENGTH U(4) +#define ID_MMFR4_CCIDX_MASK U(0xf) + +/* ID_PFR0 definitions */ +#define ID_PFR0_AMU_SHIFT U(20) +#define ID_PFR0_AMU_LENGTH U(4) +#define ID_PFR0_AMU_MASK U(0xf) +#define ID_PFR0_AMU_NOT_SUPPORTED U(0x0) +#define ID_PFR0_AMU_V1 U(0x1) +#define ID_PFR0_AMU_V1P1 U(0x2) + +#define ID_PFR0_DIT_SHIFT U(24) +#define ID_PFR0_DIT_LENGTH U(4) +#define ID_PFR0_DIT_MASK U(0xf) +#define ID_PFR0_DIT_SUPPORTED (U(1) << ID_PFR0_DIT_SHIFT) + +/* ID_PFR1 definitions */ +#define ID_PFR1_VIRTEXT_SHIFT U(12) +#define ID_PFR1_VIRTEXT_MASK U(0xf) +#define GET_VIRT_EXT(id) (((id) >> ID_PFR1_VIRTEXT_SHIFT) \ + & ID_PFR1_VIRTEXT_MASK) +#define ID_PFR1_GENTIMER_SHIFT U(16) +#define ID_PFR1_GENTIMER_MASK U(0xf) +#define ID_PFR1_GIC_SHIFT U(28) +#define ID_PFR1_GIC_MASK U(0xf) +#define ID_PFR1_SEC_SHIFT U(4) +#define ID_PFR1_SEC_MASK U(0xf) +#define ID_PFR1_ELx_ENABLED U(1) + +/* SCTLR definitions */ +#define SCTLR_RES1_DEF ((U(1) << 23) | (U(1) << 22) | (U(1) << 4) | \ + (U(1) << 3)) +#if ARM_ARCH_MAJOR == 7 +#define SCTLR_RES1 SCTLR_RES1_DEF +#else +#define SCTLR_RES1 (SCTLR_RES1_DEF | (U(1) << 11)) +#endif +#define SCTLR_M_BIT (U(1) << 0) +#define SCTLR_A_BIT (U(1) << 1) +#define SCTLR_C_BIT (U(1) << 2) +#define SCTLR_CP15BEN_BIT (U(1) << 5) +#define SCTLR_ITD_BIT (U(1) << 7) +#define SCTLR_Z_BIT (U(1) << 11) +#define SCTLR_I_BIT (U(1) << 12) +#define SCTLR_V_BIT (U(1) << 13) +#define SCTLR_RR_BIT (U(1) << 14) +#define SCTLR_NTWI_BIT (U(1) << 16) +#define SCTLR_NTWE_BIT (U(1) << 18) +#define SCTLR_WXN_BIT (U(1) << 19) +#define SCTLR_UWXN_BIT (U(1) << 20) +#define SCTLR_EE_BIT (U(1) << 25) +#define SCTLR_TRE_BIT (U(1) << 28) +#define SCTLR_AFE_BIT (U(1) << 29) +#define SCTLR_TE_BIT (U(1) << 30) +#define SCTLR_DSSBS_BIT (U(1) << 31) +#define SCTLR_RESET_VAL (SCTLR_RES1 | SCTLR_NTWE_BIT | \ + SCTLR_NTWI_BIT | SCTLR_CP15BEN_BIT) + +/* SDCR definitions */ +#define SDCR_SPD(x) ((x) << 14) +#define SDCR_SPD_LEGACY U(0x0) +#define SDCR_SPD_DISABLE U(0x2) +#define SDCR_SPD_ENABLE U(0x3) +#define SDCR_SPME_BIT (U(1) << 17) +#define SDCR_TTRF_BIT (U(1) << 19) +#define SDCR_SCCD_BIT (U(1) << 23) +#define SDCR_MTPME_BIT (U(1) << 28) +#define SDCR_RESET_VAL U(0x0) + +/* HSCTLR definitions */ +#define HSCTLR_RES1 ((U(1) << 29) | (U(1) << 28) | (U(1) << 23) | \ + (U(1) << 22) | (U(1) << 18) | (U(1) << 16) | \ + (U(1) << 11) | (U(1) << 4) | (U(1) << 3)) + +#define HSCTLR_M_BIT (U(1) << 0) +#define HSCTLR_A_BIT (U(1) << 1) +#define HSCTLR_C_BIT (U(1) << 2) +#define HSCTLR_CP15BEN_BIT (U(1) << 5) +#define HSCTLR_ITD_BIT (U(1) << 7) +#define HSCTLR_SED_BIT (U(1) << 8) +#define HSCTLR_I_BIT (U(1) << 12) +#define HSCTLR_WXN_BIT (U(1) << 19) +#define HSCTLR_EE_BIT (U(1) << 25) +#define HSCTLR_TE_BIT (U(1) << 30) + +/* CPACR definitions */ +#define CPACR_FPEN(x) ((x) << 20) +#define CPACR_FP_TRAP_PL0 UL(0x1) +#define CPACR_FP_TRAP_ALL UL(0x2) +#define CPACR_FP_TRAP_NONE UL(0x3) + +/* SCR definitions */ +#define SCR_TWE_BIT (UL(1) << 13) +#define SCR_TWI_BIT (UL(1) << 12) +#define SCR_SIF_BIT (UL(1) << 9) +#define SCR_HCE_BIT (UL(1) << 8) +#define SCR_SCD_BIT (UL(1) << 7) +#define SCR_NET_BIT (UL(1) << 6) +#define SCR_AW_BIT (UL(1) << 5) +#define SCR_FW_BIT (UL(1) << 4) +#define SCR_EA_BIT (UL(1) << 3) +#define SCR_FIQ_BIT (UL(1) << 2) +#define SCR_IRQ_BIT (UL(1) << 1) +#define SCR_NS_BIT (UL(1) << 0) +#define SCR_VALID_BIT_MASK U(0x33ff) +#define SCR_RESET_VAL U(0x0) + +#define GET_NS_BIT(scr) ((scr) & SCR_NS_BIT) + +/* HCR definitions */ +#define HCR_TGE_BIT (U(1) << 27) +#define HCR_AMO_BIT (U(1) << 5) +#define HCR_IMO_BIT (U(1) << 4) +#define HCR_FMO_BIT (U(1) << 3) +#define HCR_RESET_VAL U(0x0) + +/* CNTHCTL definitions */ +#define CNTHCTL_RESET_VAL U(0x0) +#define PL1PCEN_BIT (U(1) << 1) +#define PL1PCTEN_BIT (U(1) << 0) + +/* CNTKCTL definitions */ +#define PL0PTEN_BIT (U(1) << 9) +#define PL0VTEN_BIT (U(1) << 8) +#define PL0PCTEN_BIT (U(1) << 0) +#define PL0VCTEN_BIT (U(1) << 1) +#define EVNTEN_BIT (U(1) << 2) +#define EVNTDIR_BIT (U(1) << 3) +#define EVNTI_SHIFT U(4) +#define EVNTI_MASK U(0xf) + +/* HCPTR definitions */ +#define HCPTR_RES1 ((U(1) << 13) | (U(1) << 12) | U(0x3ff)) +#define TCPAC_BIT (U(1) << 31) +#define TAM_SHIFT U(30) +#define TAM_BIT (U(1) << TAM_SHIFT) +#define TTA_BIT (U(1) << 20) +#define TCP11_BIT (U(1) << 11) +#define TCP10_BIT (U(1) << 10) +#define HCPTR_RESET_VAL HCPTR_RES1 + +/* VTTBR definitions */ +#define VTTBR_RESET_VAL ULL(0x0) +#define VTTBR_VMID_MASK ULL(0xff) +#define VTTBR_VMID_SHIFT U(48) +#define VTTBR_BADDR_MASK ULL(0xffffffffffff) +#define VTTBR_BADDR_SHIFT U(0) + +/* HDCR definitions */ +#define HDCR_MTPME_BIT (U(1) << 28) +#define HDCR_HLP_BIT (U(1) << 26) +#define HDCR_HPME_BIT (U(1) << 7) +#define HDCR_RESET_VAL U(0x0) + +/* HSTR definitions */ +#define HSTR_RESET_VAL U(0x0) + +/* CNTHP_CTL definitions */ +#define CNTHP_CTL_RESET_VAL U(0x0) + +/* NSACR definitions */ +#define NSASEDIS_BIT (U(1) << 15) +#define NSTRCDIS_BIT (U(1) << 20) +#define NSACR_CP11_BIT (U(1) << 11) +#define NSACR_CP10_BIT (U(1) << 10) +#define NSACR_IMP_DEF_MASK (U(0x7) << 16) +#define NSACR_ENABLE_FP_ACCESS (NSACR_CP11_BIT | NSACR_CP10_BIT) +#define NSACR_RESET_VAL U(0x0) + +/* CPACR definitions */ +#define ASEDIS_BIT (U(1) << 31) +#define TRCDIS_BIT (U(1) << 28) +#define CPACR_CP11_SHIFT U(22) +#define CPACR_CP10_SHIFT U(20) +#define CPACR_ENABLE_FP_ACCESS ((U(0x3) << CPACR_CP11_SHIFT) |\ + (U(0x3) << CPACR_CP10_SHIFT)) +#define CPACR_RESET_VAL U(0x0) + +/* FPEXC definitions */ +#define FPEXC_RES1 ((U(1) << 10) | (U(1) << 9) | (U(1) << 8)) +#define FPEXC_EN_BIT (U(1) << 30) +#define FPEXC_RESET_VAL FPEXC_RES1 + +/* SPSR/CPSR definitions */ +#define SPSR_FIQ_BIT (U(1) << 0) +#define SPSR_IRQ_BIT (U(1) << 1) +#define SPSR_ABT_BIT (U(1) << 2) +#define SPSR_AIF_SHIFT U(6) +#define SPSR_AIF_MASK U(0x7) + +#define SPSR_E_SHIFT U(9) +#define SPSR_E_MASK U(0x1) +#define SPSR_E_LITTLE U(0) +#define SPSR_E_BIG U(1) + +#define SPSR_T_SHIFT U(5) +#define SPSR_T_MASK U(0x1) +#define SPSR_T_ARM U(0) +#define SPSR_T_THUMB U(1) + +#define SPSR_MODE_SHIFT U(0) +#define SPSR_MODE_MASK U(0x7) + +#define SPSR_SSBS_BIT BIT_32(23) + +#define DISABLE_ALL_EXCEPTIONS \ + (SPSR_FIQ_BIT | SPSR_IRQ_BIT | SPSR_ABT_BIT) + +#define CPSR_DIT_BIT (U(1) << 21) +/* + * TTBCR definitions + */ +#define TTBCR_EAE_BIT (U(1) << 31) + +#define TTBCR_SH1_NON_SHAREABLE (U(0x0) << 28) +#define TTBCR_SH1_OUTER_SHAREABLE (U(0x2) << 28) +#define TTBCR_SH1_INNER_SHAREABLE (U(0x3) << 28) + +#define TTBCR_RGN1_OUTER_NC (U(0x0) << 26) +#define TTBCR_RGN1_OUTER_WBA (U(0x1) << 26) +#define TTBCR_RGN1_OUTER_WT (U(0x2) << 26) +#define TTBCR_RGN1_OUTER_WBNA (U(0x3) << 26) + +#define TTBCR_RGN1_INNER_NC (U(0x0) << 24) +#define TTBCR_RGN1_INNER_WBA (U(0x1) << 24) +#define TTBCR_RGN1_INNER_WT (U(0x2) << 24) +#define TTBCR_RGN1_INNER_WBNA (U(0x3) << 24) + +#define TTBCR_EPD1_BIT (U(1) << 23) +#define TTBCR_A1_BIT (U(1) << 22) + +#define TTBCR_T1SZ_SHIFT U(16) +#define TTBCR_T1SZ_MASK U(0x7) +#define TTBCR_TxSZ_MIN U(0) +#define TTBCR_TxSZ_MAX U(7) + +#define TTBCR_SH0_NON_SHAREABLE (U(0x0) << 12) +#define TTBCR_SH0_OUTER_SHAREABLE (U(0x2) << 12) +#define TTBCR_SH0_INNER_SHAREABLE (U(0x3) << 12) + +#define TTBCR_RGN0_OUTER_NC (U(0x0) << 10) +#define TTBCR_RGN0_OUTER_WBA (U(0x1) << 10) +#define TTBCR_RGN0_OUTER_WT (U(0x2) << 10) +#define TTBCR_RGN0_OUTER_WBNA (U(0x3) << 10) + +#define TTBCR_RGN0_INNER_NC (U(0x0) << 8) +#define TTBCR_RGN0_INNER_WBA (U(0x1) << 8) +#define TTBCR_RGN0_INNER_WT (U(0x2) << 8) +#define TTBCR_RGN0_INNER_WBNA (U(0x3) << 8) + +#define TTBCR_EPD0_BIT (U(1) << 7) +#define TTBCR_T0SZ_SHIFT U(0) +#define TTBCR_T0SZ_MASK U(0x7) + +/* + * HTCR definitions + */ +#define HTCR_RES1 ((U(1) << 31) | (U(1) << 23)) + +#define HTCR_SH0_NON_SHAREABLE (U(0x0) << 12) +#define HTCR_SH0_OUTER_SHAREABLE (U(0x2) << 12) +#define HTCR_SH0_INNER_SHAREABLE (U(0x3) << 12) + +#define HTCR_RGN0_OUTER_NC (U(0x0) << 10) +#define HTCR_RGN0_OUTER_WBA (U(0x1) << 10) +#define HTCR_RGN0_OUTER_WT (U(0x2) << 10) +#define HTCR_RGN0_OUTER_WBNA (U(0x3) << 10) + +#define HTCR_RGN0_INNER_NC (U(0x0) << 8) +#define HTCR_RGN0_INNER_WBA (U(0x1) << 8) +#define HTCR_RGN0_INNER_WT (U(0x2) << 8) +#define HTCR_RGN0_INNER_WBNA (U(0x3) << 8) + +#define HTCR_T0SZ_SHIFT U(0) +#define HTCR_T0SZ_MASK U(0x7) + +#define MODE_RW_SHIFT U(0x4) +#define MODE_RW_MASK U(0x1) +#define MODE_RW_32 U(0x1) + +#define MODE32_SHIFT U(0) +#define MODE32_MASK U(0x1f) +#define MODE32_usr U(0x10) +#define MODE32_fiq U(0x11) +#define MODE32_irq U(0x12) +#define MODE32_svc U(0x13) +#define MODE32_mon U(0x16) +#define MODE32_abt U(0x17) +#define MODE32_hyp U(0x1a) +#define MODE32_und U(0x1b) +#define MODE32_sys U(0x1f) + +#define GET_M32(mode) (((mode) >> MODE32_SHIFT) & MODE32_MASK) + +#define SPSR_MODE32(mode, isa, endian, aif) \ +( \ + ( \ + (MODE_RW_32 << MODE_RW_SHIFT) | \ + (((mode) & MODE32_MASK) << MODE32_SHIFT) | \ + (((isa) & SPSR_T_MASK) << SPSR_T_SHIFT) | \ + (((endian) & SPSR_E_MASK) << SPSR_E_SHIFT) | \ + (((aif) & SPSR_AIF_MASK) << SPSR_AIF_SHIFT) \ + ) & \ + (~(SPSR_SSBS_BIT)) \ +) + +/* + * TTBR definitions + */ +#define TTBR_CNP_BIT ULL(0x1) + +/* + * CTR definitions + */ +#define CTR_CWG_SHIFT U(24) +#define CTR_CWG_MASK U(0xf) +#define CTR_ERG_SHIFT U(20) +#define CTR_ERG_MASK U(0xf) +#define CTR_DMINLINE_SHIFT U(16) +#define CTR_DMINLINE_WIDTH U(4) +#define CTR_DMINLINE_MASK ((U(1) << 4) - U(1)) +#define CTR_L1IP_SHIFT U(14) +#define CTR_L1IP_MASK U(0x3) +#define CTR_IMINLINE_SHIFT U(0) +#define CTR_IMINLINE_MASK U(0xf) + +#define MAX_CACHE_LINE_SIZE U(0x800) /* 2KB */ + +/* PMCR definitions */ +#define PMCR_N_SHIFT U(11) +#define PMCR_N_MASK U(0x1f) +#define PMCR_N_BITS (PMCR_N_MASK << PMCR_N_SHIFT) +#define PMCR_LP_BIT (U(1) << 7) +#define PMCR_LC_BIT (U(1) << 6) +#define PMCR_DP_BIT (U(1) << 5) +#define PMCR_X_BIT (U(1) << 4) +#define PMCR_C_BIT (U(1) << 2) +#define PMCR_P_BIT (U(1) << 1) +#define PMCR_E_BIT (U(1) << 0) +#define PMCR_RESET_VAL U(0x0) + +/******************************************************************************* + * Definitions of register offsets, fields and macros for CPU system + * instructions. + ******************************************************************************/ + +#define TLBI_ADDR_SHIFT U(0) +#define TLBI_ADDR_MASK U(0xFFFFF000) +#define TLBI_ADDR(x) (((x) >> TLBI_ADDR_SHIFT) & TLBI_ADDR_MASK) + +/******************************************************************************* + * Definitions of register offsets and fields in the CNTCTLBase Frame of the + * system level implementation of the Generic Timer. + ******************************************************************************/ +#define CNTCTLBASE_CNTFRQ U(0x0) +#define CNTNSAR U(0x4) +#define CNTNSAR_NS_SHIFT(x) (x) + +#define CNTACR_BASE(x) (U(0x40) + ((x) << 2)) +#define CNTACR_RPCT_SHIFT U(0x0) +#define CNTACR_RVCT_SHIFT U(0x1) +#define CNTACR_RFRQ_SHIFT U(0x2) +#define CNTACR_RVOFF_SHIFT U(0x3) +#define CNTACR_RWVT_SHIFT U(0x4) +#define CNTACR_RWPT_SHIFT U(0x5) + +/******************************************************************************* + * Definitions of register offsets and fields in the CNTBaseN Frame of the + * system level implementation of the Generic Timer. + ******************************************************************************/ +/* Physical Count register. */ +#define CNTPCT_LO U(0x0) +/* Counter Frequency register. */ +#define CNTBASEN_CNTFRQ U(0x10) +/* Physical Timer CompareValue register. */ +#define CNTP_CVAL_LO U(0x20) +/* Physical Timer Control register. */ +#define CNTP_CTL U(0x2c) + +/* Physical timer control register bit fields shifts and masks */ +#define CNTP_CTL_ENABLE_SHIFT 0 +#define CNTP_CTL_IMASK_SHIFT 1 +#define CNTP_CTL_ISTATUS_SHIFT 2 + +#define CNTP_CTL_ENABLE_MASK U(1) +#define CNTP_CTL_IMASK_MASK U(1) +#define CNTP_CTL_ISTATUS_MASK U(1) + +/* MAIR macros */ +#define MAIR0_ATTR_SET(attr, index) ((attr) << ((index) << U(3))) +#define MAIR1_ATTR_SET(attr, index) ((attr) << (((index) - U(3)) << U(3))) + +/* System register defines The format is: coproc, opt1, CRn, CRm, opt2 */ +#define SCR p15, 0, c1, c1, 0 +#define SCTLR p15, 0, c1, c0, 0 +#define ACTLR p15, 0, c1, c0, 1 +#define SDCR p15, 0, c1, c3, 1 +#define MPIDR p15, 0, c0, c0, 5 +#define MIDR p15, 0, c0, c0, 0 +#define HVBAR p15, 4, c12, c0, 0 +#define VBAR p15, 0, c12, c0, 0 +#define MVBAR p15, 0, c12, c0, 1 +#define NSACR p15, 0, c1, c1, 2 +#define CPACR p15, 0, c1, c0, 2 +#define DCCIMVAC p15, 0, c7, c14, 1 +#define DCCMVAC p15, 0, c7, c10, 1 +#define DCIMVAC p15, 0, c7, c6, 1 +#define DCCISW p15, 0, c7, c14, 2 +#define DCCSW p15, 0, c7, c10, 2 +#define DCISW p15, 0, c7, c6, 2 +#define CTR p15, 0, c0, c0, 1 +#define CNTFRQ p15, 0, c14, c0, 0 +#define ID_MMFR3 p15, 0, c0, c1, 7 +#define ID_MMFR4 p15, 0, c0, c2, 6 +#define ID_DFR0 p15, 0, c0, c1, 2 +#define ID_DFR1 p15, 0, c0, c3, 5 +#define ID_PFR0 p15, 0, c0, c1, 0 +#define ID_PFR1 p15, 0, c0, c1, 1 +#define MAIR0 p15, 0, c10, c2, 0 +#define MAIR1 p15, 0, c10, c2, 1 +#define TTBCR p15, 0, c2, c0, 2 +#define TTBR0 p15, 0, c2, c0, 0 +#define TTBR1 p15, 0, c2, c0, 1 +#define TLBIALL p15, 0, c8, c7, 0 +#define TLBIALLH p15, 4, c8, c7, 0 +#define TLBIALLIS p15, 0, c8, c3, 0 +#define TLBIMVA p15, 0, c8, c7, 1 +#define TLBIMVAA p15, 0, c8, c7, 3 +#define TLBIMVAAIS p15, 0, c8, c3, 3 +#define TLBIMVAHIS p15, 4, c8, c3, 1 +#define BPIALLIS p15, 0, c7, c1, 6 +#define BPIALL p15, 0, c7, c5, 6 +#define ICIALLU p15, 0, c7, c5, 0 +#define HSCTLR p15, 4, c1, c0, 0 +#define HCR p15, 4, c1, c1, 0 +#define HCPTR p15, 4, c1, c1, 2 +#define HSTR p15, 4, c1, c1, 3 +#define CNTHCTL p15, 4, c14, c1, 0 +#define CNTKCTL p15, 0, c14, c1, 0 +#define VPIDR p15, 4, c0, c0, 0 +#define VMPIDR p15, 4, c0, c0, 5 +#define ISR p15, 0, c12, c1, 0 +#define CLIDR p15, 1, c0, c0, 1 +#define CSSELR p15, 2, c0, c0, 0 +#define CCSIDR p15, 1, c0, c0, 0 +#define CCSIDR2 p15, 1, c0, c0, 2 +#define HTCR p15, 4, c2, c0, 2 +#define HMAIR0 p15, 4, c10, c2, 0 +#define ATS1CPR p15, 0, c7, c8, 0 +#define ATS1HR p15, 4, c7, c8, 0 +#define DBGOSDLR p14, 0, c1, c3, 4 + +/* Debug register defines. The format is: coproc, opt1, CRn, CRm, opt2 */ +#define HDCR p15, 4, c1, c1, 1 +#define PMCR p15, 0, c9, c12, 0 +#define CNTHP_TVAL p15, 4, c14, c2, 0 +#define CNTHP_CTL p15, 4, c14, c2, 1 + +/* AArch32 coproc registers for 32bit MMU descriptor support */ +#define PRRR p15, 0, c10, c2, 0 +#define NMRR p15, 0, c10, c2, 1 +#define DACR p15, 0, c3, c0, 0 + +/* GICv3 CPU Interface system register defines. The format is: coproc, opt1, CRn, CRm, opt2 */ +#define ICC_IAR1 p15, 0, c12, c12, 0 +#define ICC_IAR0 p15, 0, c12, c8, 0 +#define ICC_EOIR1 p15, 0, c12, c12, 1 +#define ICC_EOIR0 p15, 0, c12, c8, 1 +#define ICC_HPPIR1 p15, 0, c12, c12, 2 +#define ICC_HPPIR0 p15, 0, c12, c8, 2 +#define ICC_BPR1 p15, 0, c12, c12, 3 +#define ICC_BPR0 p15, 0, c12, c8, 3 +#define ICC_DIR p15, 0, c12, c11, 1 +#define ICC_PMR p15, 0, c4, c6, 0 +#define ICC_RPR p15, 0, c12, c11, 3 +#define ICC_CTLR p15, 0, c12, c12, 4 +#define ICC_MCTLR p15, 6, c12, c12, 4 +#define ICC_SRE p15, 0, c12, c12, 5 +#define ICC_HSRE p15, 4, c12, c9, 5 +#define ICC_MSRE p15, 6, c12, c12, 5 +#define ICC_IGRPEN0 p15, 0, c12, c12, 6 +#define ICC_IGRPEN1 p15, 0, c12, c12, 7 +#define ICC_MGRPEN1 p15, 6, c12, c12, 7 + +/* 64 bit system register defines The format is: coproc, opt1, CRm */ +#define TTBR0_64 p15, 0, c2 +#define TTBR1_64 p15, 1, c2 +#define CNTVOFF_64 p15, 4, c14 +#define VTTBR_64 p15, 6, c2 +#define CNTPCT_64 p15, 0, c14 +#define HTTBR_64 p15, 4, c2 +#define CNTHP_CVAL_64 p15, 6, c14 +#define PAR_64 p15, 0, c7 + +/* 64 bit GICv3 CPU Interface system register defines. The format is: coproc, opt1, CRm */ +#define ICC_SGI1R_EL1_64 p15, 0, c12 +#define ICC_ASGI1R_EL1_64 p15, 1, c12 +#define ICC_SGI0R_EL1_64 p15, 2, c12 + +/* Fault registers. The format is: coproc, opt1, CRn, CRm, opt2 */ +#define DFSR p15, 0, c5, c0, 0 +#define IFSR p15, 0, c5, c0, 1 +#define DFAR p15, 0, c6, c0, 0 +#define IFAR p15, 0, c6, c0, 2 + +/******************************************************************************* + * Definitions of MAIR encodings for device and normal memory + ******************************************************************************/ +/* + * MAIR encodings for device memory attributes. + */ +#define MAIR_DEV_nGnRnE U(0x0) +#define MAIR_DEV_nGnRE U(0x4) +#define MAIR_DEV_nGRE U(0x8) +#define MAIR_DEV_GRE U(0xc) + +/* + * MAIR encodings for normal memory attributes. + * + * Cache Policy + * WT: Write Through + * WB: Write Back + * NC: Non-Cacheable + * + * Transient Hint + * NTR: Non-Transient + * TR: Transient + * + * Allocation Policy + * RA: Read Allocate + * WA: Write Allocate + * RWA: Read and Write Allocate + * NA: No Allocation + */ +#define MAIR_NORM_WT_TR_WA U(0x1) +#define MAIR_NORM_WT_TR_RA U(0x2) +#define MAIR_NORM_WT_TR_RWA U(0x3) +#define MAIR_NORM_NC U(0x4) +#define MAIR_NORM_WB_TR_WA U(0x5) +#define MAIR_NORM_WB_TR_RA U(0x6) +#define MAIR_NORM_WB_TR_RWA U(0x7) +#define MAIR_NORM_WT_NTR_NA U(0x8) +#define MAIR_NORM_WT_NTR_WA U(0x9) +#define MAIR_NORM_WT_NTR_RA U(0xa) +#define MAIR_NORM_WT_NTR_RWA U(0xb) +#define MAIR_NORM_WB_NTR_NA U(0xc) +#define MAIR_NORM_WB_NTR_WA U(0xd) +#define MAIR_NORM_WB_NTR_RA U(0xe) +#define MAIR_NORM_WB_NTR_RWA U(0xf) + +#define MAIR_NORM_OUTER_SHIFT U(4) + +#define MAKE_MAIR_NORMAL_MEMORY(inner, outer) \ + ((inner) | ((outer) << MAIR_NORM_OUTER_SHIFT)) + +/* PAR fields */ +#define PAR_F_SHIFT U(0) +#define PAR_F_MASK ULL(0x1) +#define PAR_ADDR_SHIFT U(12) +#define PAR_ADDR_MASK (BIT_64(40) - ULL(1)) /* 40-bits-wide page address */ + +/******************************************************************************* + * Definitions for system register interface to AMU for FEAT_AMUv1 + ******************************************************************************/ +#define AMCR p15, 0, c13, c2, 0 +#define AMCFGR p15, 0, c13, c2, 1 +#define AMCGCR p15, 0, c13, c2, 2 +#define AMUSERENR p15, 0, c13, c2, 3 +#define AMCNTENCLR0 p15, 0, c13, c2, 4 +#define AMCNTENSET0 p15, 0, c13, c2, 5 +#define AMCNTENCLR1 p15, 0, c13, c3, 0 +#define AMCNTENSET1 p15, 0, c13, c3, 1 + +/* Activity Monitor Group 0 Event Counter Registers */ +#define AMEVCNTR00 p15, 0, c0 +#define AMEVCNTR01 p15, 1, c0 +#define AMEVCNTR02 p15, 2, c0 +#define AMEVCNTR03 p15, 3, c0 + +/* Activity Monitor Group 0 Event Type Registers */ +#define AMEVTYPER00 p15, 0, c13, c6, 0 +#define AMEVTYPER01 p15, 0, c13, c6, 1 +#define AMEVTYPER02 p15, 0, c13, c6, 2 +#define AMEVTYPER03 p15, 0, c13, c6, 3 + +/* Activity Monitor Group 1 Event Counter Registers */ +#define AMEVCNTR10 p15, 0, c4 +#define AMEVCNTR11 p15, 1, c4 +#define AMEVCNTR12 p15, 2, c4 +#define AMEVCNTR13 p15, 3, c4 +#define AMEVCNTR14 p15, 4, c4 +#define AMEVCNTR15 p15, 5, c4 +#define AMEVCNTR16 p15, 6, c4 +#define AMEVCNTR17 p15, 7, c4 +#define AMEVCNTR18 p15, 0, c5 +#define AMEVCNTR19 p15, 1, c5 +#define AMEVCNTR1A p15, 2, c5 +#define AMEVCNTR1B p15, 3, c5 +#define AMEVCNTR1C p15, 4, c5 +#define AMEVCNTR1D p15, 5, c5 +#define AMEVCNTR1E p15, 6, c5 +#define AMEVCNTR1F p15, 7, c5 + +/* Activity Monitor Group 1 Event Type Registers */ +#define AMEVTYPER10 p15, 0, c13, c14, 0 +#define AMEVTYPER11 p15, 0, c13, c14, 1 +#define AMEVTYPER12 p15, 0, c13, c14, 2 +#define AMEVTYPER13 p15, 0, c13, c14, 3 +#define AMEVTYPER14 p15, 0, c13, c14, 4 +#define AMEVTYPER15 p15, 0, c13, c14, 5 +#define AMEVTYPER16 p15, 0, c13, c14, 6 +#define AMEVTYPER17 p15, 0, c13, c14, 7 +#define AMEVTYPER18 p15, 0, c13, c15, 0 +#define AMEVTYPER19 p15, 0, c13, c15, 1 +#define AMEVTYPER1A p15, 0, c13, c15, 2 +#define AMEVTYPER1B p15, 0, c13, c15, 3 +#define AMEVTYPER1C p15, 0, c13, c15, 4 +#define AMEVTYPER1D p15, 0, c13, c15, 5 +#define AMEVTYPER1E p15, 0, c13, c15, 6 +#define AMEVTYPER1F p15, 0, c13, c15, 7 + +/* AMCNTENSET0 definitions */ +#define AMCNTENSET0_Pn_SHIFT U(0) +#define AMCNTENSET0_Pn_MASK U(0xffff) + +/* AMCNTENSET1 definitions */ +#define AMCNTENSET1_Pn_SHIFT U(0) +#define AMCNTENSET1_Pn_MASK U(0xffff) + +/* AMCNTENCLR0 definitions */ +#define AMCNTENCLR0_Pn_SHIFT U(0) +#define AMCNTENCLR0_Pn_MASK U(0xffff) + +/* AMCNTENCLR1 definitions */ +#define AMCNTENCLR1_Pn_SHIFT U(0) +#define AMCNTENCLR1_Pn_MASK U(0xffff) + +/* AMCR definitions */ +#define AMCR_CG1RZ_SHIFT U(17) +#define AMCR_CG1RZ_BIT (ULL(1) << AMCR_CG1RZ_SHIFT) + +/* AMCFGR definitions */ +#define AMCFGR_NCG_SHIFT U(28) +#define AMCFGR_NCG_MASK U(0xf) +#define AMCFGR_N_SHIFT U(0) +#define AMCFGR_N_MASK U(0xff) + +/* AMCGCR definitions */ +#define AMCGCR_CG0NC_SHIFT U(0) +#define AMCGCR_CG0NC_MASK U(0xff) +#define AMCGCR_CG1NC_SHIFT U(8) +#define AMCGCR_CG1NC_MASK U(0xff) + +/******************************************************************************* + * Definitions for DynamicIQ Shared Unit registers + ******************************************************************************/ +#define CLUSTERPWRDN p15, 0, c15, c3, 6 + +/* CLUSTERPWRDN register definitions */ +#define DSU_CLUSTER_PWR_OFF 0 +#define DSU_CLUSTER_PWR_ON 1 +#define DSU_CLUSTER_PWR_MASK U(1) +#define DSU_CLUSTER_MEM_RET BIT(1) + +#endif /* ARCH_H */ diff --git a/include/arch/aarch32/arch_features.h b/include/arch/aarch32/arch_features.h new file mode 100644 index 0000000..f19c4c2 --- /dev/null +++ b/include/arch/aarch32/arch_features.h @@ -0,0 +1,190 @@ +/* + * Copyright (c) 2019-2023, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ARCH_FEATURES_H +#define ARCH_FEATURES_H + +#include <stdbool.h> + +#include <arch_helpers.h> +#include <common/feat_detect.h> + +#define ISOLATE_FIELD(reg, feat) \ + ((unsigned int)(((reg) >> (feat ## _SHIFT)) & (feat ## _MASK))) + +static inline bool is_armv7_gentimer_present(void) +{ + return ISOLATE_FIELD(read_id_pfr1(), ID_PFR1_GENTIMER) != 0U; +} + +static inline bool is_armv8_2_ttcnp_present(void) +{ + return ISOLATE_FIELD(read_id_mmfr4(), ID_MMFR4_CNP) != 0U; +} + +static unsigned int read_feat_amu_id_field(void) +{ + return ISOLATE_FIELD(read_id_pfr0(), ID_PFR0_AMU); +} + +static inline bool is_feat_amu_supported(void) +{ + if (ENABLE_FEAT_AMU == FEAT_STATE_DISABLED) { + return false; + } + + if (ENABLE_FEAT_AMU == FEAT_STATE_ALWAYS) { + return true; + } + + return read_feat_amu_id_field() >= ID_PFR0_AMU_V1; +} + +static inline bool is_feat_amuv1p1_supported(void) +{ + if (ENABLE_FEAT_AMUv1p1 == FEAT_STATE_DISABLED) { + return false; + } + + if (ENABLE_FEAT_AMUv1p1 == FEAT_STATE_ALWAYS) { + return true; + } + + return read_feat_amu_id_field() >= ID_PFR0_AMU_V1P1; +} + +static inline unsigned int read_feat_trf_id_field(void) +{ + return ISOLATE_FIELD(read_id_dfr0(), ID_DFR0_TRACEFILT); +} + +static inline bool is_feat_trf_supported(void) +{ + if (ENABLE_TRF_FOR_NS == FEAT_STATE_DISABLED) { + return false; + } + + if (ENABLE_TRF_FOR_NS == FEAT_STATE_ALWAYS) { + return true; + } + + return read_feat_trf_id_field() != 0U; +} + +static inline unsigned int read_feat_coptrc_id_field(void) +{ + return ISOLATE_FIELD(read_id_dfr0(), ID_DFR0_COPTRC); +} + +static inline bool is_feat_sys_reg_trace_supported(void) +{ + if (ENABLE_SYS_REG_TRACE_FOR_NS == FEAT_STATE_DISABLED) { + return false; + } + + if (ENABLE_SYS_REG_TRACE_FOR_NS == FEAT_STATE_ALWAYS) { + return true; + } + + return read_feat_coptrc_id_field() != 0U; +} + +static inline unsigned int read_feat_dit_id_field(void) +{ + return ISOLATE_FIELD(read_id_pfr0(), ID_PFR0_DIT); +} + +static inline bool is_feat_dit_supported(void) +{ + if (ENABLE_FEAT_DIT == FEAT_STATE_DISABLED) { + return false; + } + + if (ENABLE_FEAT_DIT == FEAT_STATE_ALWAYS) { + return true; + } + + return read_feat_dit_id_field() != 0U; +} + +static inline unsigned int read_feat_pan_id_field(void) +{ + return ISOLATE_FIELD(read_id_mmfr3(), ID_MMFR3_PAN); +} + +static inline bool is_feat_pan_supported(void) +{ + if (ENABLE_FEAT_PAN == FEAT_STATE_DISABLED) { + return false; + } + + if (ENABLE_FEAT_PAN == FEAT_STATE_ALWAYS) { + return true; + } + + return read_feat_pan_id_field() != 0U; +} + +/* + * TWED, ECV, CSV2, RAS are only used by the AArch64 EL2 context switch + * code. In fact, EL2 context switching is only needed for AArch64 (since + * there is no secure AArch32 EL2), so just disable these features here. + */ +static inline bool is_feat_twed_supported(void) { return false; } +static inline bool is_feat_ecv_supported(void) { return false; } +static inline bool is_feat_ecv_v2_supported(void) { return false; } +static inline bool is_feat_csv2_2_supported(void) { return false; } +static inline bool is_feat_ras_supported(void) { return false; } + +/* The following features are supported in AArch64 only. */ +static inline bool is_feat_vhe_supported(void) { return false; } +static inline bool is_feat_sel2_supported(void) { return false; } +static inline bool is_feat_fgt_supported(void) { return false; } +static inline bool is_feat_tcr2_supported(void) { return false; } +static inline bool is_feat_spe_supported(void) { return false; } +static inline bool is_feat_rng_supported(void) { return false; } +static inline bool is_feat_gcs_supported(void) { return false; } +static inline bool is_feat_mpam_supported(void) { return false; } +static inline bool is_feat_hcx_supported(void) { return false; } +static inline bool is_feat_sve_supported(void) { return false; } +static inline bool is_feat_brbe_supported(void) { return false; } +static inline bool is_feat_trbe_supported(void) { return false; } +static inline bool is_feat_nv2_supported(void) { return false; } +static inline bool is_feat_sme_supported(void) { return false; } +static inline bool is_feat_sme2_supported(void) { return false; } +static inline bool is_feat_s2poe_supported(void) { return false; } +static inline bool is_feat_s1poe_supported(void) { return false; } +static inline bool is_feat_sxpoe_supported(void) { return false; } +static inline bool is_feat_s2pie_supported(void) { return false; } +static inline bool is_feat_s1pie_supported(void) { return false; } +static inline bool is_feat_sxpie_supported(void) { return false; } + +static inline unsigned int read_feat_pmuv3_id_field(void) +{ + return ISOLATE_FIELD(read_id_dfr0(), ID_DFR0_PERFMON); +} + +static inline unsigned int read_feat_mtpmu_id_field(void) +{ + return ISOLATE_FIELD(read_id_dfr1(), ID_DFR1_MTPMU); +} + +static inline bool is_feat_mtpmu_supported(void) +{ + if (DISABLE_MTPMU == FEAT_STATE_DISABLED) { + return false; + } + + if (DISABLE_MTPMU == FEAT_STATE_ALWAYS) { + return true; + } + + unsigned int mtpmu = read_feat_mtpmu_id_field(); + + return mtpmu != 0U && mtpmu != ID_DFR1_MTPMU_DISABLED; +} + +#endif /* ARCH_FEATURES_H */ diff --git a/include/arch/aarch32/arch_helpers.h b/include/arch/aarch32/arch_helpers.h new file mode 100644 index 0000000..3a7c768 --- /dev/null +++ b/include/arch/aarch32/arch_helpers.h @@ -0,0 +1,488 @@ +/* + * Copyright (c) 2016-2021, ARM Limited and Contributors. All rights reserved. + * Portions copyright (c) 2021-2022, ProvenRun S.A.S. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ARCH_HELPERS_H +#define ARCH_HELPERS_H + +#include <assert.h> +#include <cdefs.h> +#include <stdbool.h> +#include <stdint.h> +#include <string.h> + +#include <arch.h> + +/********************************************************************** + * Macros which create inline functions to read or write CPU system + * registers + *********************************************************************/ + +#define _DEFINE_COPROCR_WRITE_FUNC(_name, coproc, opc1, CRn, CRm, opc2) \ +static inline void write_## _name(u_register_t v) \ +{ \ + __asm__ volatile ("mcr "#coproc","#opc1",%0,"#CRn","#CRm","#opc2 : : "r" (v));\ +} + +#define _DEFINE_COPROCR_READ_FUNC(_name, coproc, opc1, CRn, CRm, opc2) \ +static inline u_register_t read_ ## _name(void) \ +{ \ + u_register_t v; \ + __asm__ volatile ("mrc "#coproc","#opc1",%0,"#CRn","#CRm","#opc2 : "=r" (v));\ + return v; \ +} + +/* + * The undocumented %Q and %R extended asm are used to implemented the below + * 64 bit `mrrc` and `mcrr` instructions. + */ + +#define _DEFINE_COPROCR_WRITE_FUNC_64(_name, coproc, opc1, CRm) \ +static inline void write64_## _name(uint64_t v) \ +{ \ + __asm__ volatile ("mcrr "#coproc","#opc1", %Q0, %R0,"#CRm : : "r" (v));\ +} + +#define _DEFINE_COPROCR_READ_FUNC_64(_name, coproc, opc1, CRm) \ +static inline uint64_t read64_## _name(void) \ +{ uint64_t v; \ + __asm__ volatile ("mrrc "#coproc","#opc1", %Q0, %R0,"#CRm : "=r" (v));\ + return v; \ +} + +#define _DEFINE_SYSREG_READ_FUNC(_name, _reg_name) \ +static inline u_register_t read_ ## _name(void) \ +{ \ + u_register_t v; \ + __asm__ volatile ("mrs %0, " #_reg_name : "=r" (v)); \ + return v; \ +} + +#define _DEFINE_SYSREG_WRITE_FUNC(_name, _reg_name) \ +static inline void write_ ## _name(u_register_t v) \ +{ \ + __asm__ volatile ("msr " #_reg_name ", %0" : : "r" (v)); \ +} + +#define _DEFINE_SYSREG_WRITE_CONST_FUNC(_name, _reg_name) \ +static inline void write_ ## _name(const u_register_t v) \ +{ \ + __asm__ volatile ("msr " #_reg_name ", %0" : : "i" (v)); \ +} + +/* Define read function for coproc register */ +#define DEFINE_COPROCR_READ_FUNC(_name, ...) \ + _DEFINE_COPROCR_READ_FUNC(_name, __VA_ARGS__) + +/* Define write function for coproc register */ +#define DEFINE_COPROCR_WRITE_FUNC(_name, ...) \ + _DEFINE_COPROCR_WRITE_FUNC(_name, __VA_ARGS__) + +/* Define read & write function for coproc register */ +#define DEFINE_COPROCR_RW_FUNCS(_name, ...) \ + _DEFINE_COPROCR_READ_FUNC(_name, __VA_ARGS__) \ + _DEFINE_COPROCR_WRITE_FUNC(_name, __VA_ARGS__) + +/* Define 64 bit read function for coproc register */ +#define DEFINE_COPROCR_READ_FUNC_64(_name, ...) \ + _DEFINE_COPROCR_READ_FUNC_64(_name, __VA_ARGS__) + +/* Define 64 bit write function for coproc register */ +#define DEFINE_COPROCR_WRITE_FUNC_64(_name, ...) \ + _DEFINE_COPROCR_WRITE_FUNC_64(_name, __VA_ARGS__) + +/* Define 64 bit read & write function for coproc register */ +#define DEFINE_COPROCR_RW_FUNCS_64(_name, ...) \ + _DEFINE_COPROCR_READ_FUNC_64(_name, __VA_ARGS__) \ + _DEFINE_COPROCR_WRITE_FUNC_64(_name, __VA_ARGS__) + +/* Define read & write function for system register */ +#define DEFINE_SYSREG_RW_FUNCS(_name) \ + _DEFINE_SYSREG_READ_FUNC(_name, _name) \ + _DEFINE_SYSREG_WRITE_FUNC(_name, _name) + +/********************************************************************** + * Macros to create inline functions for tlbi operations + *********************************************************************/ + +#define _DEFINE_TLBIOP_FUNC(_op, coproc, opc1, CRn, CRm, opc2) \ +static inline void tlbi##_op(void) \ +{ \ + u_register_t v = 0; \ + __asm__ volatile ("mcr "#coproc","#opc1",%0,"#CRn","#CRm","#opc2 : : "r" (v));\ +} + +#define _DEFINE_BPIOP_FUNC(_op, coproc, opc1, CRn, CRm, opc2) \ +static inline void bpi##_op(void) \ +{ \ + u_register_t v = 0; \ + __asm__ volatile ("mcr "#coproc","#opc1",%0,"#CRn","#CRm","#opc2 : : "r" (v));\ +} + +#define _DEFINE_TLBIOP_PARAM_FUNC(_op, coproc, opc1, CRn, CRm, opc2) \ +static inline void tlbi##_op(u_register_t v) \ +{ \ + __asm__ volatile ("mcr "#coproc","#opc1",%0,"#CRn","#CRm","#opc2 : : "r" (v));\ +} + +/* Define function for simple TLBI operation */ +#define DEFINE_TLBIOP_FUNC(_op, ...) \ + _DEFINE_TLBIOP_FUNC(_op, __VA_ARGS__) + +/* Define function for TLBI operation with register parameter */ +#define DEFINE_TLBIOP_PARAM_FUNC(_op, ...) \ + _DEFINE_TLBIOP_PARAM_FUNC(_op, __VA_ARGS__) + +/* Define function for simple BPI operation */ +#define DEFINE_BPIOP_FUNC(_op, ...) \ + _DEFINE_BPIOP_FUNC(_op, __VA_ARGS__) + +/********************************************************************** + * Macros to create inline functions for DC operations + *********************************************************************/ +#define _DEFINE_DCOP_PARAM_FUNC(_op, coproc, opc1, CRn, CRm, opc2) \ +static inline void dc##_op(u_register_t v) \ +{ \ + __asm__ volatile ("mcr "#coproc","#opc1",%0,"#CRn","#CRm","#opc2 : : "r" (v));\ +} + +/* Define function for DC operation with register parameter */ +#define DEFINE_DCOP_PARAM_FUNC(_op, ...) \ + _DEFINE_DCOP_PARAM_FUNC(_op, __VA_ARGS__) + +/********************************************************************** + * Macros to create inline functions for system instructions + *********************************************************************/ + /* Define function for simple system instruction */ +#define DEFINE_SYSOP_FUNC(_op) \ +static inline void _op(void) \ +{ \ + __asm__ (#_op); \ +} + + +/* Define function for system instruction with type specifier */ +#define DEFINE_SYSOP_TYPE_FUNC(_op, _type) \ +static inline void _op ## _type(void) \ +{ \ + __asm__ (#_op " " #_type : : : "memory"); \ +} + +/* Define function for system instruction with register parameter */ +#define DEFINE_SYSOP_TYPE_PARAM_FUNC(_op, _type) \ +static inline void _op ## _type(u_register_t v) \ +{ \ + __asm__ (#_op " " #_type ", %0" : : "r" (v)); \ +} + +void flush_dcache_range(uintptr_t addr, size_t size); +void clean_dcache_range(uintptr_t addr, size_t size); +void inv_dcache_range(uintptr_t addr, size_t size); +bool is_dcache_enabled(void); + +void dcsw_op_louis(u_register_t op_type); +void dcsw_op_all(u_register_t op_type); + +void disable_mmu_secure(void); +void disable_mmu_icache_secure(void); + +DEFINE_SYSOP_FUNC(wfi) +DEFINE_SYSOP_FUNC(wfe) +DEFINE_SYSOP_FUNC(sev) +DEFINE_SYSOP_TYPE_FUNC(dsb, sy) +DEFINE_SYSOP_TYPE_FUNC(dmb, sy) +DEFINE_SYSOP_TYPE_FUNC(dmb, st) + +/* dmb ld is not valid for armv7/thumb machines */ +#if ARM_ARCH_MAJOR != 7 +DEFINE_SYSOP_TYPE_FUNC(dmb, ld) +#endif + +DEFINE_SYSOP_TYPE_FUNC(dsb, ish) +DEFINE_SYSOP_TYPE_FUNC(dsb, ishst) +DEFINE_SYSOP_TYPE_FUNC(dmb, ish) +DEFINE_SYSOP_TYPE_FUNC(dmb, ishst) +DEFINE_SYSOP_FUNC(isb) + +void __dead2 smc(uint32_t r0, uint32_t r1, uint32_t r2, uint32_t r3, + uint32_t r4, uint32_t r5, uint32_t r6, uint32_t r7); + +DEFINE_SYSREG_RW_FUNCS(spsr) +DEFINE_SYSREG_RW_FUNCS(cpsr) + +/******************************************************************************* + * System register accessor prototypes + ******************************************************************************/ +DEFINE_COPROCR_READ_FUNC(mpidr, MPIDR) +DEFINE_COPROCR_READ_FUNC(midr, MIDR) +DEFINE_COPROCR_READ_FUNC(id_mmfr3, ID_MMFR3) +DEFINE_COPROCR_READ_FUNC(id_mmfr4, ID_MMFR4) +DEFINE_COPROCR_READ_FUNC(id_dfr0, ID_DFR0) +DEFINE_COPROCR_READ_FUNC(id_dfr1, ID_DFR1) +DEFINE_COPROCR_READ_FUNC(id_pfr0, ID_PFR0) +DEFINE_COPROCR_READ_FUNC(id_pfr1, ID_PFR1) +DEFINE_COPROCR_READ_FUNC(isr, ISR) +DEFINE_COPROCR_READ_FUNC(clidr, CLIDR) +DEFINE_COPROCR_READ_FUNC_64(cntpct, CNTPCT_64) + +DEFINE_COPROCR_RW_FUNCS(scr, SCR) +DEFINE_COPROCR_RW_FUNCS(ctr, CTR) +DEFINE_COPROCR_RW_FUNCS(sctlr, SCTLR) +DEFINE_COPROCR_RW_FUNCS(actlr, ACTLR) +DEFINE_COPROCR_RW_FUNCS(hsctlr, HSCTLR) +DEFINE_COPROCR_RW_FUNCS(hcr, HCR) +DEFINE_COPROCR_RW_FUNCS(hcptr, HCPTR) +DEFINE_COPROCR_RW_FUNCS(cntfrq, CNTFRQ) +DEFINE_COPROCR_RW_FUNCS(cnthctl, CNTHCTL) +DEFINE_COPROCR_RW_FUNCS(mair0, MAIR0) +DEFINE_COPROCR_RW_FUNCS(mair1, MAIR1) +DEFINE_COPROCR_RW_FUNCS(hmair0, HMAIR0) +DEFINE_COPROCR_RW_FUNCS(ttbcr, TTBCR) +DEFINE_COPROCR_RW_FUNCS(htcr, HTCR) +DEFINE_COPROCR_RW_FUNCS(ttbr0, TTBR0) +DEFINE_COPROCR_RW_FUNCS_64(ttbr0, TTBR0_64) +DEFINE_COPROCR_RW_FUNCS(ttbr1, TTBR1) +DEFINE_COPROCR_RW_FUNCS_64(httbr, HTTBR_64) +DEFINE_COPROCR_RW_FUNCS(vpidr, VPIDR) +DEFINE_COPROCR_RW_FUNCS(vmpidr, VMPIDR) +DEFINE_COPROCR_RW_FUNCS_64(vttbr, VTTBR_64) +DEFINE_COPROCR_RW_FUNCS_64(ttbr1, TTBR1_64) +DEFINE_COPROCR_RW_FUNCS_64(cntvoff, CNTVOFF_64) +DEFINE_COPROCR_RW_FUNCS(csselr, CSSELR) +DEFINE_COPROCR_RW_FUNCS(hstr, HSTR) +DEFINE_COPROCR_RW_FUNCS(cnthp_ctl_el2, CNTHP_CTL) +DEFINE_COPROCR_RW_FUNCS(cnthp_tval_el2, CNTHP_TVAL) +DEFINE_COPROCR_RW_FUNCS_64(cnthp_cval_el2, CNTHP_CVAL_64) + +#define get_cntp_ctl_enable(x) (((x) >> CNTP_CTL_ENABLE_SHIFT) & \ + CNTP_CTL_ENABLE_MASK) +#define get_cntp_ctl_imask(x) (((x) >> CNTP_CTL_IMASK_SHIFT) & \ + CNTP_CTL_IMASK_MASK) +#define get_cntp_ctl_istatus(x) (((x) >> CNTP_CTL_ISTATUS_SHIFT) & \ + CNTP_CTL_ISTATUS_MASK) + +#define set_cntp_ctl_enable(x) ((x) |= U(1) << CNTP_CTL_ENABLE_SHIFT) +#define set_cntp_ctl_imask(x) ((x) |= U(1) << CNTP_CTL_IMASK_SHIFT) + +#define clr_cntp_ctl_enable(x) ((x) &= ~(U(1) << CNTP_CTL_ENABLE_SHIFT)) +#define clr_cntp_ctl_imask(x) ((x) &= ~(U(1) << CNTP_CTL_IMASK_SHIFT)) + +DEFINE_COPROCR_RW_FUNCS(icc_sre_el1, ICC_SRE) +DEFINE_COPROCR_RW_FUNCS(icc_sre_el2, ICC_HSRE) +DEFINE_COPROCR_RW_FUNCS(icc_sre_el3, ICC_MSRE) +DEFINE_COPROCR_RW_FUNCS(icc_pmr_el1, ICC_PMR) +DEFINE_COPROCR_RW_FUNCS(icc_rpr_el1, ICC_RPR) +DEFINE_COPROCR_RW_FUNCS(icc_igrpen1_el3, ICC_MGRPEN1) +DEFINE_COPROCR_RW_FUNCS(icc_igrpen1_el1, ICC_IGRPEN1) +DEFINE_COPROCR_RW_FUNCS(icc_igrpen0_el1, ICC_IGRPEN0) +DEFINE_COPROCR_RW_FUNCS(icc_hppir0_el1, ICC_HPPIR0) +DEFINE_COPROCR_RW_FUNCS(icc_hppir1_el1, ICC_HPPIR1) +DEFINE_COPROCR_RW_FUNCS(icc_iar0_el1, ICC_IAR0) +DEFINE_COPROCR_RW_FUNCS(icc_iar1_el1, ICC_IAR1) +DEFINE_COPROCR_RW_FUNCS(icc_eoir0_el1, ICC_EOIR0) +DEFINE_COPROCR_RW_FUNCS(icc_eoir1_el1, ICC_EOIR1) +DEFINE_COPROCR_RW_FUNCS_64(icc_sgi0r_el1, ICC_SGI0R_EL1_64) +DEFINE_COPROCR_WRITE_FUNC_64(icc_sgi1r, ICC_SGI1R_EL1_64) +DEFINE_COPROCR_WRITE_FUNC_64(icc_asgi1r, ICC_ASGI1R_EL1_64) + +DEFINE_COPROCR_RW_FUNCS(sdcr, SDCR) +DEFINE_COPROCR_RW_FUNCS(hdcr, HDCR) +DEFINE_COPROCR_RW_FUNCS(cnthp_ctl, CNTHP_CTL) +DEFINE_COPROCR_RW_FUNCS(pmcr, PMCR) + +/* + * Address translation + */ +DEFINE_COPROCR_WRITE_FUNC(ats1cpr, ATS1CPR) +DEFINE_COPROCR_WRITE_FUNC(ats1hr, ATS1HR) +DEFINE_COPROCR_RW_FUNCS_64(par, PAR_64) + +DEFINE_COPROCR_RW_FUNCS(nsacr, NSACR) + +/* AArch32 coproc registers for 32bit MMU descriptor support */ +DEFINE_COPROCR_RW_FUNCS(prrr, PRRR) +DEFINE_COPROCR_RW_FUNCS(nmrr, NMRR) +DEFINE_COPROCR_RW_FUNCS(dacr, DACR) + +/* Coproc registers for 32bit AMU support */ +DEFINE_COPROCR_READ_FUNC(amcfgr, AMCFGR) +DEFINE_COPROCR_READ_FUNC(amcgcr, AMCGCR) +DEFINE_COPROCR_RW_FUNCS(amcr, AMCR) + +DEFINE_COPROCR_RW_FUNCS(amcntenset0, AMCNTENSET0) +DEFINE_COPROCR_RW_FUNCS(amcntenset1, AMCNTENSET1) +DEFINE_COPROCR_RW_FUNCS(amcntenclr0, AMCNTENCLR0) +DEFINE_COPROCR_RW_FUNCS(amcntenclr1, AMCNTENCLR1) + +/* Coproc registers for 64bit AMU support */ +DEFINE_COPROCR_RW_FUNCS_64(amevcntr00, AMEVCNTR00) +DEFINE_COPROCR_RW_FUNCS_64(amevcntr01, AMEVCNTR01) +DEFINE_COPROCR_RW_FUNCS_64(amevcntr02, AMEVCNTR02) +DEFINE_COPROCR_RW_FUNCS_64(amevcntr03, AMEVCNTR03) + +/* + * TLBI operation prototypes + */ +DEFINE_TLBIOP_FUNC(all, TLBIALL) +DEFINE_TLBIOP_FUNC(allis, TLBIALLIS) +DEFINE_TLBIOP_PARAM_FUNC(mva, TLBIMVA) +DEFINE_TLBIOP_PARAM_FUNC(mvaa, TLBIMVAA) +DEFINE_TLBIOP_PARAM_FUNC(mvaais, TLBIMVAAIS) +DEFINE_TLBIOP_PARAM_FUNC(mvahis, TLBIMVAHIS) + +/* + * BPI operation prototypes. + */ +DEFINE_BPIOP_FUNC(allis, BPIALLIS) + +/* + * DC operation prototypes + */ +DEFINE_DCOP_PARAM_FUNC(civac, DCCIMVAC) +DEFINE_DCOP_PARAM_FUNC(ivac, DCIMVAC) +#if ERRATA_A53_819472 || ERRATA_A53_824069 || ERRATA_A53_827319 +DEFINE_DCOP_PARAM_FUNC(cvac, DCCIMVAC) +#else +DEFINE_DCOP_PARAM_FUNC(cvac, DCCMVAC) +#endif + +/* + * DynamIQ Shared Unit power management + */ +DEFINE_COPROCR_RW_FUNCS(clusterpwrdn, CLUSTERPWRDN) + +/* + * RNDR is AArch64 only, so just provide a placeholder here to make the + * linker happy. + */ +static inline u_register_t read_rndr(void) +{ + assert(1); + + return 0; +} + +/* Previously defined accessor functions with incomplete register names */ +#define dsb() dsbsy() +#define dmb() dmbsy() + +/* dmb ld is not valid for armv7/thumb machines, so alias it to dmb */ +#if ARM_ARCH_MAJOR == 7 +#define dmbld() dmb() +#endif + +#define IS_IN_SECURE() \ + (GET_NS_BIT(read_scr()) == 0) + +#define IS_IN_HYP() (GET_M32(read_cpsr()) == MODE32_hyp) +#define IS_IN_SVC() (GET_M32(read_cpsr()) == MODE32_svc) +#define IS_IN_MON() (GET_M32(read_cpsr()) == MODE32_mon) +#define IS_IN_EL2() IS_IN_HYP() +/* If EL3 is AArch32, then secure PL1 and monitor mode correspond to EL3 */ +#define IS_IN_EL3() \ + ((GET_M32(read_cpsr()) == MODE32_mon) || \ + (IS_IN_SECURE() && (GET_M32(read_cpsr()) != MODE32_usr))) + +static inline unsigned int get_current_el(void) +{ + if (IS_IN_EL3()) { + return 3U; + } else if (IS_IN_EL2()) { + return 2U; + } else { + return 1U; + } +} + +/* Macros for compatibility with AArch64 system registers */ +#define read_mpidr_el1() read_mpidr() + +#define read_scr_el3() read_scr() +#define write_scr_el3(_v) write_scr(_v) + +#define read_hcr_el2() read_hcr() +#define write_hcr_el2(_v) write_hcr(_v) + +#define read_cpacr_el1() read_cpacr() +#define write_cpacr_el1(_v) write_cpacr(_v) + +#define read_cntfrq_el0() read_cntfrq() +#define write_cntfrq_el0(_v) write_cntfrq(_v) +#define read_isr_el1() read_isr() + +#define read_cntpct_el0() read64_cntpct() + +#define read_ctr_el0() read_ctr() + +#define write_icc_sgi0r_el1(_v) write64_icc_sgi0r_el1(_v) +#define write_icc_sgi1r(_v) write64_icc_sgi1r(_v) +#define write_icc_asgi1r(_v) write64_icc_asgi1r(_v) + +#define read_daif() read_cpsr() +#define write_daif(flags) write_cpsr(flags) + +#define read_cnthp_cval_el2() read64_cnthp_cval_el2() +#define write_cnthp_cval_el2(v) write64_cnthp_cval_el2(v) + +#define read_amcntenset0_el0() read_amcntenset0() +#define read_amcntenset1_el0() read_amcntenset1() + +/* Helper functions to manipulate CPSR */ +static inline void enable_irq(void) +{ + /* + * The compiler memory barrier will prevent the compiler from + * scheduling non-volatile memory access after the write to the + * register. + * + * This could happen if some initialization code issues non-volatile + * accesses to an area used by an interrupt handler, in the assumption + * that it is safe as the interrupts are disabled at the time it does + * that (according to program order). However, non-volatile accesses + * are not necessarily in program order relatively with volatile inline + * assembly statements (and volatile accesses). + */ + COMPILER_BARRIER(); + __asm__ volatile ("cpsie i"); + isb(); +} + +static inline void enable_serror(void) +{ + COMPILER_BARRIER(); + __asm__ volatile ("cpsie a"); + isb(); +} + +static inline void enable_fiq(void) +{ + COMPILER_BARRIER(); + __asm__ volatile ("cpsie f"); + isb(); +} + +static inline void disable_irq(void) +{ + COMPILER_BARRIER(); + __asm__ volatile ("cpsid i"); + isb(); +} + +static inline void disable_serror(void) +{ + COMPILER_BARRIER(); + __asm__ volatile ("cpsid a"); + isb(); +} + +static inline void disable_fiq(void) +{ + COMPILER_BARRIER(); + __asm__ volatile ("cpsid f"); + isb(); +} + +#endif /* ARCH_HELPERS_H */ diff --git a/include/arch/aarch32/asm_macros.S b/include/arch/aarch32/asm_macros.S new file mode 100644 index 0000000..3ba86e9 --- /dev/null +++ b/include/arch/aarch32/asm_macros.S @@ -0,0 +1,244 @@ +/* + * Copyright (c) 2016-2023, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef ASM_MACROS_S +#define ASM_MACROS_S + +#include <arch.h> +#include <common/asm_macros_common.S> +#include <lib/cpus/cpu_ops.h> +#include <lib/spinlock.h> + +/* + * TLBI instruction with type specifier that implements the workaround for + * errata 813419 of Cortex-A57. + */ +#if ERRATA_A57_813419 +#define TLB_INVALIDATE(_reg, _coproc) \ + stcopr _reg, _coproc; \ + dsb ish; \ + stcopr _reg, _coproc +#else +#define TLB_INVALIDATE(_reg, _coproc) \ + stcopr _reg, _coproc +#endif + + /* + * Co processor register accessors + */ + .macro ldcopr reg, coproc, opc1, CRn, CRm, opc2 + mrc \coproc, \opc1, \reg, \CRn, \CRm, \opc2 + .endm + + .macro ldcopr16 reg1, reg2, coproc, opc1, CRm + mrrc \coproc, \opc1, \reg1, \reg2, \CRm + .endm + + .macro stcopr reg, coproc, opc1, CRn, CRm, opc2 + mcr \coproc, \opc1, \reg, \CRn, \CRm, \opc2 + .endm + + .macro stcopr16 reg1, reg2, coproc, opc1, CRm + mcrr \coproc, \opc1, \reg1, \reg2, \CRm + .endm + + /* Cache line size helpers */ + .macro dcache_line_size reg, tmp + ldcopr \tmp, CTR + ubfx \tmp, \tmp, #CTR_DMINLINE_SHIFT, #CTR_DMINLINE_WIDTH + mov \reg, #CPU_WORD_SIZE + lsl \reg, \reg, \tmp + .endm + + .macro icache_line_size reg, tmp + ldcopr \tmp, CTR + and \tmp, \tmp, #CTR_IMINLINE_MASK + mov \reg, #CPU_WORD_SIZE + lsl \reg, \reg, \tmp + .endm + + /* + * Declare the exception vector table, enforcing it is aligned on a + * 32 byte boundary. + */ + .macro vector_base label + .section .vectors, "ax" + .align 5 + \label: + .endm + + /* + * This macro calculates the base address of the current CPU's multi + * processor(MP) stack using the plat_my_core_pos() index, the name of + * the stack storage and the size of each stack. + * Out: r0 = physical address of stack base + * Clobber: r14, r1, r2 + */ + .macro get_my_mp_stack _name, _size + bl plat_my_core_pos + ldr r2, =(\_name + \_size) + mov r1, #\_size + mla r0, r0, r1, r2 + .endm + + /* + * This macro calculates the base address of a uniprocessor(UP) stack + * using the name of the stack storage and the size of the stack + * Out: r0 = physical address of stack base + */ + .macro get_up_stack _name, _size + ldr r0, =(\_name + \_size) + .endm + +#if ARM_ARCH_MAJOR == 7 && !defined(ARMV7_SUPPORTS_VIRTUALIZATION) + /* + * Macro for mitigating against speculative execution. + * ARMv7 cores without Virtualization extension do not support the + * eret instruction. + */ + .macro exception_return + movs pc, lr + dsb nsh + isb + .endm + +#else + /* + * Macro for mitigating against speculative execution beyond ERET. Uses the + * speculation barrier instruction introduced by FEAT_SB, if it's enabled. + */ + .macro exception_return + eret +#if ENABLE_FEAT_SB + sb +#else + dsb nsh + isb +#endif + .endm +#endif + + /* Macro for error synchronization */ + .macro synchronize_errors + /* Complete any stores that may return an abort */ + dsb sy + /* Synchronise the CPU context with the completion of the dsb */ + isb + .endm + +#if (ARM_ARCH_MAJOR == 7) + /* ARMv7 does not support stl instruction */ + .macro stl _reg, _write_lock + dmb + str \_reg, \_write_lock + dsb + .endm +#endif + + /* + * Helper macro to generate the best mov/movw/movt combinations + * according to the value to be moved. + */ + .macro mov_imm _reg, _val + .if ((\_val) & 0xffff0000) == 0 + mov \_reg, #(\_val) + .else + movw \_reg, #((\_val) & 0xffff) + movt \_reg, #((\_val) >> 16) + .endif + .endm + + /* + * Macro to mark instances where we're jumping to a function and don't + * expect a return. To provide the function being jumped to with + * additional information, we use 'bl' instruction to jump rather than + * 'b'. + * + * Debuggers infer the location of a call from where LR points to, which + * is usually the instruction after 'bl'. If this macro expansion + * happens to be the last location in a function, that'll cause the LR + * to point a location beyond the function, thereby misleading debugger + * back trace. We therefore insert a 'nop' after the function call for + * debug builds, unless 'skip_nop' parameter is non-zero. + */ + .macro no_ret _func:req, skip_nop=0 + bl \_func +#if DEBUG + .ifeq \skip_nop + nop + .endif +#endif + .endm + + /* + * Reserve space for a spin lock in assembly file. + */ + .macro define_asm_spinlock _name:req + .align SPINLOCK_ASM_ALIGN + \_name: + .space SPINLOCK_ASM_SIZE + .endm + + /* + * Helper macro to OR the bottom 32 bits of `_val` into `_reg_l` + * and the top 32 bits of `_val` into `_reg_h`. If either the bottom + * or top word of `_val` is zero, the corresponding OR operation + * is skipped. + */ + .macro orr64_imm _reg_l, _reg_h, _val + .if (\_val >> 32) + orr \_reg_h, \_reg_h, #(\_val >> 32) + .endif + .if (\_val & 0xffffffff) + orr \_reg_l, \_reg_l, #(\_val & 0xffffffff) + .endif + .endm + + /* + * Helper macro to bitwise-clear bits in `_reg_l` and + * `_reg_h` given a 64 bit immediate `_val`. The set bits + * in the bottom word of `_val` dictate which bits from + * `_reg_l` should be cleared. Similarly, the set bits in + * the top word of `_val` dictate which bits from `_reg_h` + * should be cleared. If either the bottom or top word of + * `_val` is zero, the corresponding BIC operation is skipped. + */ + .macro bic64_imm _reg_l, _reg_h, _val + .if (\_val >> 32) + bic \_reg_h, \_reg_h, #(\_val >> 32) + .endif + .if (\_val & 0xffffffff) + bic \_reg_l, \_reg_l, #(\_val & 0xffffffff) + .endif + .endm + + /* + * Helper macro for carrying out division in software when + * hardware division is not suported. \top holds the dividend + * in the function call and the remainder after + * the function is executed. \bot holds the divisor. \div holds + * the quotient and \temp is a temporary registed used in calcualtion. + * The division algorithm has been obtained from: + * http://www.keil.com/support/man/docs/armasm/armasm_dom1359731155623.htm + */ + .macro softudiv div:req,top:req,bot:req,temp:req + + mov \temp, \bot + cmp \temp, \top, lsr #1 +div1: + movls \temp, \temp, lsl #1 + cmp \temp, \top, lsr #1 + bls div1 + mov \div, #0 + +div2: + cmp \top, \temp + subcs \top, \top,\temp + ADC \div, \div, \div + mov \temp, \temp, lsr #1 + cmp \temp, \bot + bhs div2 + .endm +#endif /* ASM_MACROS_S */ diff --git a/include/arch/aarch32/assert_macros.S b/include/arch/aarch32/assert_macros.S new file mode 100644 index 0000000..ab3a2eb --- /dev/null +++ b/include/arch/aarch32/assert_macros.S @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef ASSERT_MACROS_S +#define ASSERT_MACROS_S + + /* + * Assembler macro to enable asm_assert. We assume that the stack is + * initialized prior to invoking this macro. + */ +#define ASM_ASSERT(_cc) \ +.ifndef .L_assert_filename ;\ + .pushsection .rodata.str1.1, "aS" ;\ + .L_assert_filename: ;\ + .string __FILE__ ;\ + .popsection ;\ +.endif ;\ + b##_cc 300f ;\ + ldr r0, =.L_assert_filename ;\ + ldr r1, =__LINE__ ;\ + b asm_assert;\ +300: + +#endif /* ASSERT_MACROS_S */ diff --git a/include/arch/aarch32/console_macros.S b/include/arch/aarch32/console_macros.S new file mode 100644 index 0000000..726b281 --- /dev/null +++ b/include/arch/aarch32/console_macros.S @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef CONSOLE_MACROS_S +#define CONSOLE_MACROS_S + +#include <drivers/console.h> + +/* + * This macro encapsulates the common setup that has to be done at the end of + * a console driver's register function. It will register all of the driver's + * callbacks in the console_t structure and initialize the flags field (by + * default consoles are enabled for the "boot" and "crash" states, this can be + * changed after registration with the console_set_scope() function). It ends + * with a tail call that will include return to the caller. + * REQUIRES console_t pointer in r0 and a valid return address in lr. + */ + .macro finish_console_register _driver, putc=0, getc=0, flush=0 + /* + * If any of the callback is not specified or set as 0, then the + * corresponding callback entry in console_t is set to 0. + */ + .ifne \putc + ldr r1, =console_\_driver\()_putc + .else + mov r1, #0 + .endif + str r1, [r0, #CONSOLE_T_PUTC] + + /* + * If ENABLE_CONSOLE_GETC support is disabled, but a getc callback is + * specified nonetheless, the assembler will abort on encountering the + * CONSOLE_T_GETC macro, which is undefined. + */ + .ifne \getc + ldr r1, =console_\_driver\()_getc + str r1, [r0, #CONSOLE_T_GETC] + .else +#if ENABLE_CONSOLE_GETC + mov r1, #0 + str r1, [r0, #CONSOLE_T_GETC] +#endif + .endif + + .ifne \flush + ldr r1, =console_\_driver\()_flush + .else + mov r1, #0 + .endif + str r1, [r0, #CONSOLE_T_FLUSH] + + mov r1, #(CONSOLE_FLAG_BOOT | CONSOLE_FLAG_CRASH) + str r1, [r0, #CONSOLE_T_FLAGS] + b console_register + .endm + +#endif /* CONSOLE_MACROS_S */ diff --git a/include/arch/aarch32/el3_common_macros.S b/include/arch/aarch32/el3_common_macros.S new file mode 100644 index 0000000..697eb82 --- /dev/null +++ b/include/arch/aarch32/el3_common_macros.S @@ -0,0 +1,455 @@ +/* + * Copyright (c) 2016-2023, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef EL3_COMMON_MACROS_S +#define EL3_COMMON_MACROS_S + +#include <arch.h> +#include <asm_macros.S> +#include <assert_macros.S> +#include <lib/xlat_tables/xlat_tables_defs.h> + +#define PAGE_START_MASK ~(PAGE_SIZE_MASK) + + /* + * Helper macro to initialise EL3 registers we care about. + */ + .macro el3_arch_init_common + /* --------------------------------------------------------------------- + * SCTLR has already been initialised - read current value before + * modifying. + * + * SCTLR.I: Enable the instruction cache. + * + * SCTLR.A: Enable Alignment fault checking. All instructions that load + * or store one or more registers have an alignment check that the + * address being accessed is aligned to the size of the data element(s) + * being accessed. + * --------------------------------------------------------------------- + */ + ldr r1, =(SCTLR_I_BIT | SCTLR_A_BIT) + ldcopr r0, SCTLR + orr r0, r0, r1 + stcopr r0, SCTLR + isb + + /* --------------------------------------------------------------------- + * Initialise SCR, setting all fields rather than relying on the hw. + * + * SCR.SIF: Enabled so that Secure state instruction fetches from + * Non-secure memory are not permitted. + * --------------------------------------------------------------------- + */ + ldr r0, =(SCR_RESET_VAL | SCR_SIF_BIT) + stcopr r0, SCR + + /* ----------------------------------------------------- + * Enable the Asynchronous data abort now that the + * exception vectors have been setup. + * ----------------------------------------------------- + */ + cpsie a + isb + + /* --------------------------------------------------------------------- + * Initialise NSACR, setting all the fields, except for the + * IMPLEMENTATION DEFINED field, rather than relying on the hw. Some + * fields are architecturally UNKNOWN on reset. + * + * NSACR_ENABLE_FP_ACCESS: Represents NSACR.cp11 and NSACR.cp10. The + * cp11 field is ignored, but is set to same value as cp10. The cp10 + * field is set to allow access to Advanced SIMD and floating point + * features from both Security states. + * + * NSACR.NSTRCDIS: When system register trace implemented, Set to one + * so that NS System register accesses to all implemented trace + * registers are disabled. + * When system register trace is not implemented, this bit is RES0 and + * hence set to zero. + * --------------------------------------------------------------------- + */ + ldcopr r0, NSACR + and r0, r0, #NSACR_IMP_DEF_MASK + orr r0, r0, #(NSACR_RESET_VAL | NSACR_ENABLE_FP_ACCESS) + ldcopr r1, ID_DFR0 + ubfx r1, r1, #ID_DFR0_COPTRC_SHIFT, #ID_DFR0_COPTRC_LENGTH + cmp r1, #ID_DFR0_COPTRC_SUPPORTED + bne 1f + orr r0, r0, #NSTRCDIS_BIT +1: + stcopr r0, NSACR + isb + + /* --------------------------------------------------------------------- + * Initialise CPACR, setting all fields rather than relying on hw. Some + * fields are architecturally UNKNOWN on reset. + * + * CPACR.TRCDIS: Trap control for PL0 and PL1 System register accesses + * to trace registers. Set to zero to allow access. + * + * CPACR_ENABLE_FP_ACCESS: Represents CPACR.cp11 and CPACR.cp10. The + * cp11 field is ignored, but is set to same value as cp10. The cp10 + * field is set to allow full access from PL0 and PL1 to floating-point + * and Advanced SIMD features. + * --------------------------------------------------------------------- + */ + ldr r0, =((CPACR_RESET_VAL | CPACR_ENABLE_FP_ACCESS) & ~(TRCDIS_BIT)) + stcopr r0, CPACR + isb + + /* --------------------------------------------------------------------- + * Initialise FPEXC, setting all fields rather than relying on hw. Some + * fields are architecturally UNKNOWN on reset and are set to zero + * except for field(s) listed below. + * + * FPEXC.EN: Enable access to Advanced SIMD and floating point features + * from all exception levels. + * + * __SOFTFP__: Predefined macro exposed by soft-float toolchain. + * ARMv7 and Cortex-A32(ARMv8/aarch32) has both soft-float and + * hard-float variants of toolchain, avoid compiling below code with + * soft-float toolchain as "vmsr" instruction will not be recognized. + * --------------------------------------------------------------------- + */ +#if ((ARM_ARCH_MAJOR > 7) || defined(ARMV7_SUPPORTS_VFP)) && !(__SOFTFP__) + ldr r0, =(FPEXC_RESET_VAL | FPEXC_EN_BIT) + vmsr FPEXC, r0 + isb +#endif + +#if (ARM_ARCH_MAJOR > 7) + /* --------------------------------------------------------------------- + * Initialise SDCR, setting all the fields rather than relying on hw. + * + * SDCR.SPD: Disable AArch32 privileged debug. Debug exceptions from + * Secure EL1 are disabled. + * + * SDCR.SCCD: Set to one so that cycle counting by PMCCNTR is prohibited + * in Secure state. This bit is RES0 in versions of the architecture + * earlier than ARMv8.5, setting it to 1 doesn't have any effect on + * them. + * + * SDCR.TTRF: Set to one so that access to trace filter control + * registers in non-monitor mode generate Monitor trap exception, + * unless the access generates a higher priority exception when + * trace filter control(FEAT_TRF) is implemented. + * When FEAT_TRF is not implemented, this bit is RES0. + * --------------------------------------------------------------------- + */ + ldr r0, =((SDCR_RESET_VAL | SDCR_SPD(SDCR_SPD_DISABLE) | \ + SDCR_SCCD_BIT) & ~SDCR_TTRF_BIT) + ldcopr r1, ID_DFR0 + ubfx r1, r1, #ID_DFR0_TRACEFILT_SHIFT, #ID_DFR0_TRACEFILT_LENGTH + cmp r1, #ID_DFR0_TRACEFILT_SUPPORTED + bne 1f + orr r0, r0, #SDCR_TTRF_BIT +1: + stcopr r0, SDCR + + /* --------------------------------------------------------------------- + * Initialise PMCR, setting all fields rather than relying + * on hw. Some fields are architecturally UNKNOWN on reset. + * + * PMCR.LP: Set to one so that event counter overflow, that + * is recorded in PMOVSCLR[0-30], occurs on the increment + * that changes PMEVCNTR<n>[63] from 1 to 0, when ARMv8.5-PMU + * is implemented. This bit is RES0 in versions of the architecture + * earlier than ARMv8.5, setting it to 1 doesn't have any effect + * on them. + * This bit is Reserved, UNK/SBZP in ARMv7. + * + * PMCR.LC: Set to one so that cycle counter overflow, that + * is recorded in PMOVSCLR[31], occurs on the increment + * that changes PMCCNTR[63] from 1 to 0. + * This bit is Reserved, UNK/SBZP in ARMv7. + * + * PMCR.DP: Set to one to prohibit cycle counting whilst in Secure mode. + * --------------------------------------------------------------------- + */ + ldr r0, =(PMCR_RESET_VAL | PMCR_DP_BIT | PMCR_LC_BIT | \ + PMCR_LP_BIT) +#else + ldr r0, =(PMCR_RESET_VAL | PMCR_DP_BIT) +#endif + stcopr r0, PMCR + + /* + * If Data Independent Timing (DIT) functionality is implemented, + * always enable DIT in EL3 + */ + ldcopr r0, ID_PFR0 + and r0, r0, #(ID_PFR0_DIT_MASK << ID_PFR0_DIT_SHIFT) + cmp r0, #ID_PFR0_DIT_SUPPORTED + bne 1f + mrs r0, cpsr + orr r0, r0, #CPSR_DIT_BIT + msr cpsr_cxsf, r0 +1: + .endm + +/* ----------------------------------------------------------------------------- + * This is the super set of actions that need to be performed during a cold boot + * or a warm boot in EL3. This code is shared by BL1 and BL32 (SP_MIN). + * + * This macro will always perform reset handling, architectural initialisations + * and stack setup. The rest of the actions are optional because they might not + * be needed, depending on the context in which this macro is called. This is + * why this macro is parameterised ; each parameter allows to enable/disable + * some actions. + * + * _init_sctlr: + * Whether the macro needs to initialise the SCTLR register including + * configuring the endianness of data accesses. + * + * _warm_boot_mailbox: + * Whether the macro needs to detect the type of boot (cold/warm). The + * detection is based on the platform entrypoint address : if it is zero + * then it is a cold boot, otherwise it is a warm boot. In the latter case, + * this macro jumps on the platform entrypoint address. + * + * _secondary_cold_boot: + * Whether the macro needs to identify the CPU that is calling it: primary + * CPU or secondary CPU. The primary CPU will be allowed to carry on with + * the platform initialisations, while the secondaries will be put in a + * platform-specific state in the meantime. + * + * If the caller knows this macro will only be called by the primary CPU + * then this parameter can be defined to 0 to skip this step. + * + * _init_memory: + * Whether the macro needs to initialise the memory. + * + * _init_c_runtime: + * Whether the macro needs to initialise the C runtime environment. + * + * _exception_vectors: + * Address of the exception vectors to program in the VBAR_EL3 register. + * + * _pie_fixup_size: + * Size of memory region to fixup Global Descriptor Table (GDT). + * + * A non-zero value is expected when firmware needs GDT to be fixed-up. + * + * ----------------------------------------------------------------------------- + */ + .macro el3_entrypoint_common \ + _init_sctlr, _warm_boot_mailbox, _secondary_cold_boot, \ + _init_memory, _init_c_runtime, _exception_vectors, \ + _pie_fixup_size + + /* Make sure we are in Secure Mode */ +#if ENABLE_ASSERTIONS + ldcopr r0, SCR + tst r0, #SCR_NS_BIT + ASM_ASSERT(eq) +#endif + + .if \_init_sctlr + /* ------------------------------------------------------------- + * This is the initialisation of SCTLR and so must ensure that + * all fields are explicitly set rather than relying on hw. Some + * fields reset to an IMPLEMENTATION DEFINED value. + * + * SCTLR.TE: Set to zero so that exceptions to an Exception + * Level executing at PL1 are taken to A32 state. + * + * SCTLR.EE: Set the CPU endianness before doing anything that + * might involve memory reads or writes. Set to zero to select + * Little Endian. + * + * SCTLR.V: Set to zero to select the normal exception vectors + * with base address held in VBAR. + * + * SCTLR.DSSBS: Set to zero to disable speculation store bypass + * safe behaviour upon exception entry to EL3. + * ------------------------------------------------------------- + */ + ldr r0, =(SCTLR_RESET_VAL & ~(SCTLR_TE_BIT | SCTLR_EE_BIT | \ + SCTLR_V_BIT | SCTLR_DSSBS_BIT)) + stcopr r0, SCTLR + isb + .endif /* _init_sctlr */ + + /* Switch to monitor mode */ + cps #MODE32_mon + isb + + .if \_warm_boot_mailbox + /* ------------------------------------------------------------- + * This code will be executed for both warm and cold resets. + * Now is the time to distinguish between the two. + * Query the platform entrypoint address and if it is not zero + * then it means it is a warm boot so jump to this address. + * ------------------------------------------------------------- + */ + bl plat_get_my_entrypoint + cmp r0, #0 + bxne r0 + .endif /* _warm_boot_mailbox */ + + .if \_pie_fixup_size +#if ENABLE_PIE + /* + * ------------------------------------------------------------ + * If PIE is enabled fixup the Global descriptor Table only + * once during primary core cold boot path. + * + * Compile time base address, required for fixup, is calculated + * using "pie_fixup" label present within first page. + * ------------------------------------------------------------ + */ + pie_fixup: + ldr r0, =pie_fixup + ldr r1, =PAGE_START_MASK + and r0, r0, r1 + mov_imm r1, \_pie_fixup_size + add r1, r1, r0 + bl fixup_gdt_reloc +#endif /* ENABLE_PIE */ + .endif /* _pie_fixup_size */ + + /* --------------------------------------------------------------------- + * Set the exception vectors (VBAR/MVBAR). + * --------------------------------------------------------------------- + */ + ldr r0, =\_exception_vectors + stcopr r0, VBAR + stcopr r0, MVBAR + isb + + /* --------------------------------------------------------------------- + * It is a cold boot. + * Perform any processor specific actions upon reset e.g. cache, TLB + * invalidations etc. + * --------------------------------------------------------------------- + */ + bl reset_handler + + el3_arch_init_common + + .if \_secondary_cold_boot + /* ------------------------------------------------------------- + * Check if this is a primary or secondary CPU cold boot. + * The primary CPU will set up the platform while the + * secondaries are placed in a platform-specific state until the + * primary CPU performs the necessary actions to bring them out + * of that state and allows entry into the OS. + * ------------------------------------------------------------- + */ + bl plat_is_my_cpu_primary + cmp r0, #0 + bne do_primary_cold_boot + + /* This is a cold boot on a secondary CPU */ + bl plat_secondary_cold_boot_setup + /* plat_secondary_cold_boot_setup() is not supposed to return */ + no_ret plat_panic_handler + + do_primary_cold_boot: + .endif /* _secondary_cold_boot */ + + /* --------------------------------------------------------------------- + * Initialize memory now. Secondary CPU initialization won't get to this + * point. + * --------------------------------------------------------------------- + */ + + .if \_init_memory + bl platform_mem_init + .endif /* _init_memory */ + + /* --------------------------------------------------------------------- + * Init C runtime environment: + * - Zero-initialise the NOBITS sections. There are 2 of them: + * - the .bss section; + * - the coherent memory section (if any). + * - Relocate the data section from ROM to RAM, if required. + * --------------------------------------------------------------------- + */ + .if \_init_c_runtime +#if defined(IMAGE_BL32) || (defined(IMAGE_BL2) && RESET_TO_BL2) + /* ----------------------------------------------------------------- + * Invalidate the RW memory used by the image. This + * includes the data and NOBITS sections. This is done to + * safeguard against possible corruption of this memory by + * dirty cache lines in a system cache as a result of use by + * an earlier boot loader stage. If PIE is enabled however, + * RO sections including the GOT may be modified during + * pie fixup. Therefore, to be on the safe side, invalidate + * the entire image region if PIE is enabled. + * ----------------------------------------------------------------- + */ +#if ENABLE_PIE +#if SEPARATE_CODE_AND_RODATA + ldr r0, =__TEXT_START__ +#else + ldr r0, =__RO_START__ +#endif /* SEPARATE_CODE_AND_RODATA */ +#else + ldr r0, =__RW_START__ +#endif /* ENABLE_PIE */ + ldr r1, =__RW_END__ + sub r1, r1, r0 + bl inv_dcache_range +#if defined(IMAGE_BL2) && SEPARATE_BL2_NOLOAD_REGION + ldr r0, =__BL2_NOLOAD_START__ + ldr r1, =__BL2_NOLOAD_END__ + sub r1, r1, r0 + bl inv_dcache_range +#endif +#endif + + /* + * zeromem uses r12 whereas it is used to save previous BL arg3, + * save it in r7 + */ + mov r7, r12 + ldr r0, =__BSS_START__ + ldr r1, =__BSS_END__ + sub r1, r1, r0 + bl zeromem + +#if USE_COHERENT_MEM + ldr r0, =__COHERENT_RAM_START__ + ldr r1, =__COHERENT_RAM_END_UNALIGNED__ + sub r1, r1, r0 + bl zeromem +#endif + + /* Restore r12 */ + mov r12, r7 + +#if defined(IMAGE_BL1) || \ + (defined(IMAGE_BL2) && RESET_TO_BL2 && BL2_IN_XIP_MEM) + /* ----------------------------------------------------- + * Copy data from ROM to RAM. + * ----------------------------------------------------- + */ + ldr r0, =__DATA_RAM_START__ + ldr r1, =__DATA_ROM_START__ + ldr r2, =__DATA_RAM_END__ + sub r2, r2, r0 + bl memcpy4 +#endif + .endif /* _init_c_runtime */ + + /* --------------------------------------------------------------------- + * Allocate a stack whose memory will be marked as Normal-IS-WBWA when + * the MMU is enabled. There is no risk of reading stale stack memory + * after enabling the MMU as only the primary CPU is running at the + * moment. + * --------------------------------------------------------------------- + */ + bl plat_set_my_stack + +#if STACK_PROTECTOR_ENABLED + .if \_init_c_runtime + bl update_stack_protector_canary + .endif /* _init_c_runtime */ +#endif + .endm + +#endif /* EL3_COMMON_MACROS_S */ diff --git a/include/arch/aarch32/smccc_helpers.h b/include/arch/aarch32/smccc_helpers.h new file mode 100644 index 0000000..8876da9 --- /dev/null +++ b/include/arch/aarch32/smccc_helpers.h @@ -0,0 +1,177 @@ +/* + * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef SMCCC_HELPERS_H +#define SMCCC_HELPERS_H + +#include <lib/smccc.h> + +/* These are offsets to registers in smc_ctx_t */ +#define SMC_CTX_GPREG_R0 U(0x0) +#define SMC_CTX_GPREG_R1 U(0x4) +#define SMC_CTX_GPREG_R2 U(0x8) +#define SMC_CTX_GPREG_R3 U(0xC) +#define SMC_CTX_GPREG_R4 U(0x10) +#define SMC_CTX_GPREG_R5 U(0x14) +#define SMC_CTX_SP_USR U(0x34) +#define SMC_CTX_SPSR_MON U(0x78) +#define SMC_CTX_SP_MON U(0x7C) +#define SMC_CTX_LR_MON U(0x80) +#define SMC_CTX_SCR U(0x84) +#define SMC_CTX_PMCR U(0x88) +#define SMC_CTX_SIZE U(0x90) + +#ifndef __ASSEMBLER__ + +#include <stdint.h> + +#include <lib/cassert.h> + +/* + * The generic structure to save arguments and callee saved registers during + * an SMC. Also this structure is used to store the result return values after + * the completion of SMC service. + */ +typedef struct smc_ctx { + u_register_t r0; + u_register_t r1; + u_register_t r2; + u_register_t r3; + u_register_t r4; + u_register_t r5; + u_register_t r6; + u_register_t r7; + u_register_t r8; + u_register_t r9; + u_register_t r10; + u_register_t r11; + u_register_t r12; + /* spsr_usr doesn't exist */ + u_register_t sp_usr; + u_register_t lr_usr; + u_register_t spsr_irq; + u_register_t sp_irq; + u_register_t lr_irq; + u_register_t spsr_fiq; + u_register_t sp_fiq; + u_register_t lr_fiq; + u_register_t spsr_svc; + u_register_t sp_svc; + u_register_t lr_svc; + u_register_t spsr_abt; + u_register_t sp_abt; + u_register_t lr_abt; + u_register_t spsr_und; + u_register_t sp_und; + u_register_t lr_und; + u_register_t spsr_mon; + /* + * `sp_mon` will point to the C runtime stack in monitor mode. But prior + * to exit from SMC, this will point to the `smc_ctx_t` so that + * on next entry due to SMC, the `smc_ctx_t` can be easily accessed. + */ + u_register_t sp_mon; + u_register_t lr_mon; + u_register_t scr; + u_register_t pmcr; + /* + * The workaround for CVE-2017-5715 requires storing information in + * the bottom 3 bits of the stack pointer. Add a padding field to + * force the size of the struct to be a multiple of 8. + */ + u_register_t pad; +} smc_ctx_t __aligned(8); + +/* + * Compile time assertions related to the 'smc_context' structure to + * ensure that the assembler and the compiler view of the offsets of + * the structure members is the same. + */ +CASSERT(SMC_CTX_GPREG_R0 == __builtin_offsetof(smc_ctx_t, r0), + assert_smc_ctx_greg_r0_offset_mismatch); +CASSERT(SMC_CTX_GPREG_R1 == __builtin_offsetof(smc_ctx_t, r1), + assert_smc_ctx_greg_r1_offset_mismatch); +CASSERT(SMC_CTX_GPREG_R2 == __builtin_offsetof(smc_ctx_t, r2), + assert_smc_ctx_greg_r2_offset_mismatch); +CASSERT(SMC_CTX_GPREG_R3 == __builtin_offsetof(smc_ctx_t, r3), + assert_smc_ctx_greg_r3_offset_mismatch); +CASSERT(SMC_CTX_GPREG_R4 == __builtin_offsetof(smc_ctx_t, r4), + assert_smc_ctx_greg_r4_offset_mismatch); +CASSERT(SMC_CTX_SP_USR == __builtin_offsetof(smc_ctx_t, sp_usr), + assert_smc_ctx_sp_usr_offset_mismatch); +CASSERT(SMC_CTX_LR_MON == __builtin_offsetof(smc_ctx_t, lr_mon), + assert_smc_ctx_lr_mon_offset_mismatch); +CASSERT(SMC_CTX_SPSR_MON == __builtin_offsetof(smc_ctx_t, spsr_mon), + assert_smc_ctx_spsr_mon_offset_mismatch); + +CASSERT((sizeof(smc_ctx_t) & 0x7U) == 0U, assert_smc_ctx_not_aligned); +CASSERT(SMC_CTX_SIZE == sizeof(smc_ctx_t), assert_smc_ctx_size_mismatch); + +/* Convenience macros to return from SMC handler */ +#define SMC_RET0(_h) { \ + return (uintptr_t)(_h); \ +} +#define SMC_RET1(_h, _r0) { \ + ((smc_ctx_t *)(_h))->r0 = (_r0); \ + SMC_RET0(_h); \ +} +#define SMC_RET2(_h, _r0, _r1) { \ + ((smc_ctx_t *)(_h))->r1 = (_r1); \ + SMC_RET1(_h, (_r0)); \ +} +#define SMC_RET3(_h, _r0, _r1, _r2) { \ + ((smc_ctx_t *)(_h))->r2 = (_r2); \ + SMC_RET2(_h, (_r0), (_r1)); \ +} +#define SMC_RET4(_h, _r0, _r1, _r2, _r3) { \ + ((smc_ctx_t *)(_h))->r3 = (_r3); \ + SMC_RET3(_h, (_r0), (_r1), (_r2)); \ +} +#define SMC_RET5(_h, _r0, _r1, _r2, _r3, _r4) { \ + ((smc_ctx_t *)(_h))->r4 = (_r4); \ + SMC_RET4(_h, (_r0), (_r1), (_r2), (_r3)); \ +} +#define SMC_RET6(_h, _r0, _r1, _r2, _r3, _r4, _r5) { \ + ((smc_ctx_t *)(_h))->r5 = (_r5); \ + SMC_RET5(_h, (_r0), (_r1), (_r2), (_r3), (_r4)); \ +} +#define SMC_RET7(_h, _r0, _r1, _r2, _r3, _r4, _r5, _r6) { \ + ((smc_ctx_t *)(_h))->r6 = (_r6); \ + SMC_RET6(_h, (_r0), (_r1), (_r2), (_r3), (_r4), (_r5)); \ +} +#define SMC_RET8(_h, _r0, _r1, _r2, _r3, _r4, _r5, _r6, _r7) { \ + ((smc_ctx_t *)(_h))->r7 = (_r7); \ + SMC_RET7(_h, (_r0), (_r1), (_r2), (_r3), (_r4), (_r5), (_r6)); \ +} + +/* + * Helper macro to retrieve the SMC parameters from smc_ctx_t. + */ +#define get_smc_params_from_ctx(_hdl, _r1, _r2, _r3, _r4) { \ + _r1 = ((smc_ctx_t *)_hdl)->r1; \ + _r2 = ((smc_ctx_t *)_hdl)->r2; \ + _r3 = ((smc_ctx_t *)_hdl)->r3; \ + _r4 = ((smc_ctx_t *)_hdl)->r4; \ + } + +/* ------------------------------------------------------------------------ + * Helper APIs for setting and retrieving appropriate `smc_ctx_t`. + * These functions need to implemented by the BL including this library. + * ------------------------------------------------------------------------ + */ + +/* Get the pointer to `smc_ctx_t` corresponding to the security state. */ +void *smc_get_ctx(unsigned int security_state); + +/* Set the next `smc_ctx_t` corresponding to the security state. */ +void smc_set_next_ctx(unsigned int security_state); + +/* Get the pointer to next `smc_ctx_t` already set by `smc_set_next_ctx()`. */ +void *smc_get_next_ctx(void); + +#endif /*__ASSEMBLER__*/ + +#endif /* SMCCC_HELPERS_H */ diff --git a/include/arch/aarch32/smccc_macros.S b/include/arch/aarch32/smccc_macros.S new file mode 100644 index 0000000..ea7835a --- /dev/null +++ b/include/arch/aarch32/smccc_macros.S @@ -0,0 +1,241 @@ +/* + * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef SMCCC_MACROS_S +#define SMCCC_MACROS_S + +#include <arch.h> + +/* + * Macro to save the General purpose registers (r0 - r12), the banked + * spsr, lr, sp registers and the `scr` register to the SMC context on entry + * due a SMC call. The `lr` of the current mode (monitor) is expected to be + * already saved. The `sp` must point to the `smc_ctx_t` to save to. + * Additionally, also save the 'pmcr' register as this is updated whilst + * executing in the secure world. + */ + .macro smccc_save_gp_mode_regs + /* Save r0 - r12 in the SMC context */ + stm sp, {r0-r12} + mov r0, sp + add r0, r0, #SMC_CTX_SP_USR + +#if ARM_ARCH_MAJOR == 7 && !defined(ARMV7_SUPPORTS_VIRTUALIZATION) + /* Must be in secure state to restore Monitor mode */ + ldcopr r4, SCR + bic r2, r4, #SCR_NS_BIT + stcopr r2, SCR + isb + + cps #MODE32_sys + stm r0!, {sp, lr} + + cps #MODE32_irq + mrs r2, spsr + stm r0!, {r2, sp, lr} + + cps #MODE32_fiq + mrs r2, spsr + stm r0!, {r2, sp, lr} + + cps #MODE32_svc + mrs r2, spsr + stm r0!, {r2, sp, lr} + + cps #MODE32_abt + mrs r2, spsr + stm r0!, {r2, sp, lr} + + cps #MODE32_und + mrs r2, spsr + stm r0!, {r2, sp, lr} + + /* lr_mon is already saved by caller */ + cps #MODE32_mon + mrs r2, spsr + stm r0!, {r2} + + stcopr r4, SCR +#else + /* Save the banked registers including the current SPSR and LR */ + mrs r4, sp_usr + mrs r5, lr_usr + mrs r6, spsr_irq + mrs r7, sp_irq + mrs r8, lr_irq + mrs r9, spsr_fiq + mrs r10, sp_fiq + mrs r11, lr_fiq + mrs r12, spsr_svc + stm r0!, {r4-r12} + + mrs r4, sp_svc + mrs r5, lr_svc + mrs r6, spsr_abt + mrs r7, sp_abt + mrs r8, lr_abt + mrs r9, spsr_und + mrs r10, sp_und + mrs r11, lr_und + mrs r12, spsr + stm r0!, {r4-r12} + /* lr_mon is already saved by caller */ + + ldcopr r4, SCR + +#if ARM_ARCH_MAJOR > 7 + /* + * Check if earlier initialization of SDCR.SCCD to 1 + * failed, meaning that ARMv8-PMU is not implemented, + * cycle counting is not disabled and PMCR should be + * saved in Non-secure context. + */ + ldcopr r5, SDCR + tst r5, #SDCR_SCCD_BIT + bne 1f +#endif + /* Secure Cycle Counter is not disabled */ +#endif + ldcopr r5, PMCR + + /* Check caller's security state */ + tst r4, #SCR_NS_BIT + beq 2f + + /* Save PMCR if called from Non-secure state */ + str r5, [sp, #SMC_CTX_PMCR] + + /* Disable cycle counter when event counting is prohibited */ +2: orr r5, r5, #PMCR_DP_BIT + stcopr r5, PMCR + isb +1: str r4, [sp, #SMC_CTX_SCR] + .endm + +/* + * Macro to restore the `smc_ctx_t`, which includes the General purpose + * registers and banked mode registers, and exit from the monitor mode. + * r0 must point to the `smc_ctx_t` to restore from. + */ + .macro monitor_exit + /* + * Save the current sp and restore the smc context + * pointer to sp which will be used for handling the + * next SMC. + */ + str sp, [r0, #SMC_CTX_SP_MON] + mov sp, r0 + + /* + * Restore SCR first so that we access the right banked register + * when the other mode registers are restored. + */ + ldr r1, [r0, #SMC_CTX_SCR] + stcopr r1, SCR + isb + + /* + * Restore PMCR when returning to Non-secure state + */ + tst r1, #SCR_NS_BIT + beq 2f + + /* + * Back to Non-secure state + */ +#if ARM_ARCH_MAJOR > 7 + /* + * Check if earlier initialization SDCR.SCCD to 1 + * failed, meaning that ARMv8-PMU is not implemented and + * PMCR should be restored from Non-secure context. + */ + ldcopr r1, SDCR + tst r1, #SDCR_SCCD_BIT + bne 2f +#endif + /* + * Restore the PMCR register. + */ + ldr r1, [r0, #SMC_CTX_PMCR] + stcopr r1, PMCR +2: + /* Restore the banked registers including the current SPSR */ + add r1, r0, #SMC_CTX_SP_USR + +#if ARM_ARCH_MAJOR == 7 && !defined(ARMV7_SUPPORTS_VIRTUALIZATION) + /* Must be in secure state to restore Monitor mode */ + ldcopr r4, SCR + bic r2, r4, #SCR_NS_BIT + stcopr r2, SCR + isb + + cps #MODE32_sys + ldm r1!, {sp, lr} + + cps #MODE32_irq + ldm r1!, {r2, sp, lr} + msr spsr_fsxc, r2 + + cps #MODE32_fiq + ldm r1!, {r2, sp, lr} + msr spsr_fsxc, r2 + + cps #MODE32_svc + ldm r1!, {r2, sp, lr} + msr spsr_fsxc, r2 + + cps #MODE32_abt + ldm r1!, {r2, sp, lr} + msr spsr_fsxc, r2 + + cps #MODE32_und + ldm r1!, {r2, sp, lr} + msr spsr_fsxc, r2 + + cps #MODE32_mon + ldm r1!, {r2} + msr spsr_fsxc, r2 + + stcopr r4, SCR + isb +#else + ldm r1!, {r4-r12} + msr sp_usr, r4 + msr lr_usr, r5 + msr spsr_irq, r6 + msr sp_irq, r7 + msr lr_irq, r8 + msr spsr_fiq, r9 + msr sp_fiq, r10 + msr lr_fiq, r11 + msr spsr_svc, r12 + + ldm r1!, {r4-r12} + msr sp_svc, r4 + msr lr_svc, r5 + msr spsr_abt, r6 + msr sp_abt, r7 + msr lr_abt, r8 + msr spsr_und, r9 + msr sp_und, r10 + msr lr_und, r11 + /* + * Use the `_fsxc` suffix explicitly to instruct the assembler + * to update all the 32 bits of SPSR. Else, by default, the + * assembler assumes `_fc` suffix which only modifies + * f->[31:24] and c->[7:0] bits of SPSR. + */ + msr spsr_fsxc, r12 +#endif + + /* Restore the LR */ + ldr lr, [r0, #SMC_CTX_LR_MON] + + /* Restore the rest of the general purpose registers */ + ldm r0, {r0-r12} + exception_return + .endm + +#endif /* SMCCC_MACROS_S */ diff --git a/include/arch/aarch64/arch.h b/include/arch/aarch64/arch.h new file mode 100644 index 0000000..e9d22b6 --- /dev/null +++ b/include/arch/aarch64/arch.h @@ -0,0 +1,1437 @@ +/* + * Copyright (c) 2013-2023, Arm Limited and Contributors. All rights reserved. + * Copyright (c) 2020-2022, NVIDIA Corporation. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ARCH_H +#define ARCH_H + +#include <lib/utils_def.h> + +/******************************************************************************* + * MIDR bit definitions + ******************************************************************************/ +#define MIDR_IMPL_MASK U(0xff) +#define MIDR_IMPL_SHIFT U(0x18) +#define MIDR_VAR_SHIFT U(20) +#define MIDR_VAR_BITS U(4) +#define MIDR_VAR_MASK U(0xf) +#define MIDR_REV_SHIFT U(0) +#define MIDR_REV_BITS U(4) +#define MIDR_REV_MASK U(0xf) +#define MIDR_PN_MASK U(0xfff) +#define MIDR_PN_SHIFT U(0x4) + +/******************************************************************************* + * MPIDR macros + ******************************************************************************/ +#define MPIDR_MT_MASK (ULL(1) << 24) +#define MPIDR_CPU_MASK MPIDR_AFFLVL_MASK +#define MPIDR_CLUSTER_MASK (MPIDR_AFFLVL_MASK << MPIDR_AFFINITY_BITS) +#define MPIDR_AFFINITY_BITS U(8) +#define MPIDR_AFFLVL_MASK ULL(0xff) +#define MPIDR_AFF0_SHIFT U(0) +#define MPIDR_AFF1_SHIFT U(8) +#define MPIDR_AFF2_SHIFT U(16) +#define MPIDR_AFF3_SHIFT U(32) +#define MPIDR_AFF_SHIFT(_n) MPIDR_AFF##_n##_SHIFT +#define MPIDR_AFFINITY_MASK ULL(0xff00ffffff) +#define MPIDR_AFFLVL_SHIFT U(3) +#define MPIDR_AFFLVL0 ULL(0x0) +#define MPIDR_AFFLVL1 ULL(0x1) +#define MPIDR_AFFLVL2 ULL(0x2) +#define MPIDR_AFFLVL3 ULL(0x3) +#define MPIDR_AFFLVL(_n) MPIDR_AFFLVL##_n +#define MPIDR_AFFLVL0_VAL(mpidr) \ + (((mpidr) >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK) +#define MPIDR_AFFLVL1_VAL(mpidr) \ + (((mpidr) >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK) +#define MPIDR_AFFLVL2_VAL(mpidr) \ + (((mpidr) >> MPIDR_AFF2_SHIFT) & MPIDR_AFFLVL_MASK) +#define MPIDR_AFFLVL3_VAL(mpidr) \ + (((mpidr) >> MPIDR_AFF3_SHIFT) & MPIDR_AFFLVL_MASK) +/* + * The MPIDR_MAX_AFFLVL count starts from 0. Take care to + * add one while using this macro to define array sizes. + * TODO: Support only the first 3 affinity levels for now. + */ +#define MPIDR_MAX_AFFLVL U(2) + +#define MPID_MASK (MPIDR_MT_MASK | \ + (MPIDR_AFFLVL_MASK << MPIDR_AFF3_SHIFT) | \ + (MPIDR_AFFLVL_MASK << MPIDR_AFF2_SHIFT) | \ + (MPIDR_AFFLVL_MASK << MPIDR_AFF1_SHIFT) | \ + (MPIDR_AFFLVL_MASK << MPIDR_AFF0_SHIFT)) + +#define MPIDR_AFF_ID(mpid, n) \ + (((mpid) >> MPIDR_AFF_SHIFT(n)) & MPIDR_AFFLVL_MASK) + +/* + * An invalid MPID. This value can be used by functions that return an MPID to + * indicate an error. + */ +#define INVALID_MPID U(0xFFFFFFFF) + +/******************************************************************************* + * Definitions for CPU system register interface to GICv3 + ******************************************************************************/ +#define ICC_IGRPEN1_EL1 S3_0_C12_C12_7 +#define ICC_SGI1R S3_0_C12_C11_5 +#define ICC_ASGI1R S3_0_C12_C11_6 +#define ICC_SRE_EL1 S3_0_C12_C12_5 +#define ICC_SRE_EL2 S3_4_C12_C9_5 +#define ICC_SRE_EL3 S3_6_C12_C12_5 +#define ICC_CTLR_EL1 S3_0_C12_C12_4 +#define ICC_CTLR_EL3 S3_6_C12_C12_4 +#define ICC_PMR_EL1 S3_0_C4_C6_0 +#define ICC_RPR_EL1 S3_0_C12_C11_3 +#define ICC_IGRPEN1_EL3 S3_6_c12_c12_7 +#define ICC_IGRPEN0_EL1 S3_0_c12_c12_6 +#define ICC_HPPIR0_EL1 S3_0_c12_c8_2 +#define ICC_HPPIR1_EL1 S3_0_c12_c12_2 +#define ICC_IAR0_EL1 S3_0_c12_c8_0 +#define ICC_IAR1_EL1 S3_0_c12_c12_0 +#define ICC_EOIR0_EL1 S3_0_c12_c8_1 +#define ICC_EOIR1_EL1 S3_0_c12_c12_1 +#define ICC_SGI0R_EL1 S3_0_c12_c11_7 + +/******************************************************************************* + * Definitions for EL2 system registers for save/restore routine + ******************************************************************************/ +#define CNTPOFF_EL2 S3_4_C14_C0_6 +#define HAFGRTR_EL2 S3_4_C3_C1_6 +#define HDFGRTR_EL2 S3_4_C3_C1_4 +#define HDFGWTR_EL2 S3_4_C3_C1_5 +#define HFGITR_EL2 S3_4_C1_C1_6 +#define HFGRTR_EL2 S3_4_C1_C1_4 +#define HFGWTR_EL2 S3_4_C1_C1_5 +#define ICH_HCR_EL2 S3_4_C12_C11_0 +#define ICH_VMCR_EL2 S3_4_C12_C11_7 +#define MPAMVPM0_EL2 S3_4_C10_C6_0 +#define MPAMVPM1_EL2 S3_4_C10_C6_1 +#define MPAMVPM2_EL2 S3_4_C10_C6_2 +#define MPAMVPM3_EL2 S3_4_C10_C6_3 +#define MPAMVPM4_EL2 S3_4_C10_C6_4 +#define MPAMVPM5_EL2 S3_4_C10_C6_5 +#define MPAMVPM6_EL2 S3_4_C10_C6_6 +#define MPAMVPM7_EL2 S3_4_C10_C6_7 +#define MPAMVPMV_EL2 S3_4_C10_C4_1 +#define TRFCR_EL2 S3_4_C1_C2_1 +#define VNCR_EL2 S3_4_C2_C2_0 +#define PMSCR_EL2 S3_4_C9_C9_0 +#define TFSR_EL2 S3_4_C5_C6_0 +#define CONTEXTIDR_EL2 S3_4_C13_C0_1 +#define TTBR1_EL2 S3_4_C2_C0_1 + +/******************************************************************************* + * Generic timer memory mapped registers & offsets + ******************************************************************************/ +#define CNTCR_OFF U(0x000) +#define CNTCV_OFF U(0x008) +#define CNTFID_OFF U(0x020) + +#define CNTCR_EN (U(1) << 0) +#define CNTCR_HDBG (U(1) << 1) +#define CNTCR_FCREQ(x) ((x) << 8) + +/******************************************************************************* + * System register bit definitions + ******************************************************************************/ +/* CLIDR definitions */ +#define LOUIS_SHIFT U(21) +#define LOC_SHIFT U(24) +#define CTYPE_SHIFT(n) U(3 * (n - 1)) +#define CLIDR_FIELD_WIDTH U(3) + +/* CSSELR definitions */ +#define LEVEL_SHIFT U(1) + +/* Data cache set/way op type defines */ +#define DCISW U(0x0) +#define DCCISW U(0x1) +#if ERRATA_A53_827319 +#define DCCSW DCCISW +#else +#define DCCSW U(0x2) +#endif + +#define ID_REG_FIELD_MASK ULL(0xf) + +/* ID_AA64PFR0_EL1 definitions */ +#define ID_AA64PFR0_EL0_SHIFT U(0) +#define ID_AA64PFR0_EL1_SHIFT U(4) +#define ID_AA64PFR0_EL2_SHIFT U(8) +#define ID_AA64PFR0_EL3_SHIFT U(12) + +#define ID_AA64PFR0_AMU_SHIFT U(44) +#define ID_AA64PFR0_AMU_MASK ULL(0xf) +#define ID_AA64PFR0_AMU_NOT_SUPPORTED U(0x0) +#define ID_AA64PFR0_AMU_V1 ULL(0x1) +#define ID_AA64PFR0_AMU_V1P1 U(0x2) + +#define ID_AA64PFR0_ELX_MASK ULL(0xf) + +#define ID_AA64PFR0_GIC_SHIFT U(24) +#define ID_AA64PFR0_GIC_WIDTH U(4) +#define ID_AA64PFR0_GIC_MASK ULL(0xf) + +#define ID_AA64PFR0_SVE_SHIFT U(32) +#define ID_AA64PFR0_SVE_MASK ULL(0xf) +#define ID_AA64PFR0_SVE_SUPPORTED ULL(0x1) +#define ID_AA64PFR0_SVE_LENGTH U(4) + +#define ID_AA64PFR0_SEL2_SHIFT U(36) +#define ID_AA64PFR0_SEL2_MASK ULL(0xf) + +#define ID_AA64PFR0_MPAM_SHIFT U(40) +#define ID_AA64PFR0_MPAM_MASK ULL(0xf) + +#define ID_AA64PFR0_DIT_SHIFT U(48) +#define ID_AA64PFR0_DIT_MASK ULL(0xf) +#define ID_AA64PFR0_DIT_LENGTH U(4) +#define ID_AA64PFR0_DIT_SUPPORTED U(1) + +#define ID_AA64PFR0_CSV2_SHIFT U(56) +#define ID_AA64PFR0_CSV2_MASK ULL(0xf) +#define ID_AA64PFR0_CSV2_LENGTH U(4) +#define ID_AA64PFR0_CSV2_2_SUPPORTED ULL(0x2) + +#define ID_AA64PFR0_FEAT_RME_SHIFT U(52) +#define ID_AA64PFR0_FEAT_RME_MASK ULL(0xf) +#define ID_AA64PFR0_FEAT_RME_LENGTH U(4) +#define ID_AA64PFR0_FEAT_RME_NOT_SUPPORTED U(0) +#define ID_AA64PFR0_FEAT_RME_V1 U(1) + +#define ID_AA64PFR0_RAS_SHIFT U(28) +#define ID_AA64PFR0_RAS_MASK ULL(0xf) +#define ID_AA64PFR0_RAS_NOT_SUPPORTED ULL(0x0) +#define ID_AA64PFR0_RAS_LENGTH U(4) + +/* Exception level handling */ +#define EL_IMPL_NONE ULL(0) +#define EL_IMPL_A64ONLY ULL(1) +#define EL_IMPL_A64_A32 ULL(2) + +/* ID_AA64DFR0_EL1.TraceVer definitions */ +#define ID_AA64DFR0_TRACEVER_SHIFT U(4) +#define ID_AA64DFR0_TRACEVER_MASK ULL(0xf) +#define ID_AA64DFR0_TRACEVER_SUPPORTED ULL(1) +#define ID_AA64DFR0_TRACEVER_LENGTH U(4) +#define ID_AA64DFR0_TRACEFILT_SHIFT U(40) +#define ID_AA64DFR0_TRACEFILT_MASK U(0xf) +#define ID_AA64DFR0_TRACEFILT_SUPPORTED U(1) +#define ID_AA64DFR0_TRACEFILT_LENGTH U(4) +#define ID_AA64DFR0_PMUVER_LENGTH U(4) +#define ID_AA64DFR0_PMUVER_SHIFT U(8) +#define ID_AA64DFR0_PMUVER_MASK U(0xf) +#define ID_AA64DFR0_PMUVER_PMUV3 U(1) +#define ID_AA64DFR0_PMUVER_PMUV3P7 U(7) +#define ID_AA64DFR0_PMUVER_IMP_DEF U(0xf) + +/* ID_AA64DFR0_EL1.PMS definitions (for ARMv8.2+) */ +#define ID_AA64DFR0_PMS_SHIFT U(32) +#define ID_AA64DFR0_PMS_MASK ULL(0xf) +#define ID_AA64DFR0_SPE_SUPPORTED ULL(0x1) +#define ID_AA64DFR0_SPE_NOT_SUPPORTED ULL(0x0) + +/* ID_AA64DFR0_EL1.TraceBuffer definitions */ +#define ID_AA64DFR0_TRACEBUFFER_SHIFT U(44) +#define ID_AA64DFR0_TRACEBUFFER_MASK ULL(0xf) +#define ID_AA64DFR0_TRACEBUFFER_SUPPORTED ULL(1) + +/* ID_AA64DFR0_EL1.MTPMU definitions (for ARMv8.6+) */ +#define ID_AA64DFR0_MTPMU_SHIFT U(48) +#define ID_AA64DFR0_MTPMU_MASK ULL(0xf) +#define ID_AA64DFR0_MTPMU_SUPPORTED ULL(1) +#define ID_AA64DFR0_MTPMU_DISABLED ULL(15) + +/* ID_AA64DFR0_EL1.BRBE definitions */ +#define ID_AA64DFR0_BRBE_SHIFT U(52) +#define ID_AA64DFR0_BRBE_MASK ULL(0xf) +#define ID_AA64DFR0_BRBE_SUPPORTED ULL(1) + +/* ID_AA64ISAR0_EL1 definitions */ +#define ID_AA64ISAR0_RNDR_SHIFT U(60) +#define ID_AA64ISAR0_RNDR_MASK ULL(0xf) + +/* ID_AA64ISAR1_EL1 definitions */ +#define ID_AA64ISAR1_EL1 S3_0_C0_C6_1 + +#define ID_AA64ISAR1_GPI_SHIFT U(28) +#define ID_AA64ISAR1_GPI_MASK ULL(0xf) +#define ID_AA64ISAR1_GPA_SHIFT U(24) +#define ID_AA64ISAR1_GPA_MASK ULL(0xf) + +#define ID_AA64ISAR1_API_SHIFT U(8) +#define ID_AA64ISAR1_API_MASK ULL(0xf) +#define ID_AA64ISAR1_APA_SHIFT U(4) +#define ID_AA64ISAR1_APA_MASK ULL(0xf) + +#define ID_AA64ISAR1_SB_SHIFT U(36) +#define ID_AA64ISAR1_SB_MASK ULL(0xf) +#define ID_AA64ISAR1_SB_SUPPORTED ULL(0x1) +#define ID_AA64ISAR1_SB_NOT_SUPPORTED ULL(0x0) + +/* ID_AA64ISAR2_EL1 definitions */ +#define ID_AA64ISAR2_EL1 S3_0_C0_C6_2 + +/* ID_AA64PFR2_EL1 definitions */ +#define ID_AA64PFR2_EL1 S3_0_C0_C4_2 + +#define ID_AA64ISAR2_GPA3_SHIFT U(8) +#define ID_AA64ISAR2_GPA3_MASK ULL(0xf) + +#define ID_AA64ISAR2_APA3_SHIFT U(12) +#define ID_AA64ISAR2_APA3_MASK ULL(0xf) + +/* ID_AA64MMFR0_EL1 definitions */ +#define ID_AA64MMFR0_EL1_PARANGE_SHIFT U(0) +#define ID_AA64MMFR0_EL1_PARANGE_MASK ULL(0xf) + +#define PARANGE_0000 U(32) +#define PARANGE_0001 U(36) +#define PARANGE_0010 U(40) +#define PARANGE_0011 U(42) +#define PARANGE_0100 U(44) +#define PARANGE_0101 U(48) +#define PARANGE_0110 U(52) + +#define ID_AA64MMFR0_EL1_ECV_SHIFT U(60) +#define ID_AA64MMFR0_EL1_ECV_MASK ULL(0xf) +#define ID_AA64MMFR0_EL1_ECV_NOT_SUPPORTED ULL(0x0) +#define ID_AA64MMFR0_EL1_ECV_SUPPORTED ULL(0x1) +#define ID_AA64MMFR0_EL1_ECV_SELF_SYNCH ULL(0x2) + +#define ID_AA64MMFR0_EL1_FGT_SHIFT U(56) +#define ID_AA64MMFR0_EL1_FGT_MASK ULL(0xf) +#define ID_AA64MMFR0_EL1_FGT_SUPPORTED ULL(0x1) +#define ID_AA64MMFR0_EL1_FGT_NOT_SUPPORTED ULL(0x0) + +#define ID_AA64MMFR0_EL1_TGRAN4_SHIFT U(28) +#define ID_AA64MMFR0_EL1_TGRAN4_MASK ULL(0xf) +#define ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED ULL(0x0) +#define ID_AA64MMFR0_EL1_TGRAN4_52B_SUPPORTED ULL(0x1) +#define ID_AA64MMFR0_EL1_TGRAN4_NOT_SUPPORTED ULL(0xf) + +#define ID_AA64MMFR0_EL1_TGRAN64_SHIFT U(24) +#define ID_AA64MMFR0_EL1_TGRAN64_MASK ULL(0xf) +#define ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED ULL(0x0) +#define ID_AA64MMFR0_EL1_TGRAN64_NOT_SUPPORTED ULL(0xf) + +#define ID_AA64MMFR0_EL1_TGRAN16_SHIFT U(20) +#define ID_AA64MMFR0_EL1_TGRAN16_MASK ULL(0xf) +#define ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED ULL(0x1) +#define ID_AA64MMFR0_EL1_TGRAN16_NOT_SUPPORTED ULL(0x0) +#define ID_AA64MMFR0_EL1_TGRAN16_52B_SUPPORTED ULL(0x2) + +/* ID_AA64MMFR1_EL1 definitions */ +#define ID_AA64MMFR1_EL1_TWED_SHIFT U(32) +#define ID_AA64MMFR1_EL1_TWED_MASK ULL(0xf) +#define ID_AA64MMFR1_EL1_TWED_SUPPORTED ULL(0x1) +#define ID_AA64MMFR1_EL1_TWED_NOT_SUPPORTED ULL(0x0) + +#define ID_AA64MMFR1_EL1_PAN_SHIFT U(20) +#define ID_AA64MMFR1_EL1_PAN_MASK ULL(0xf) +#define ID_AA64MMFR1_EL1_PAN_NOT_SUPPORTED ULL(0x0) +#define ID_AA64MMFR1_EL1_PAN_SUPPORTED ULL(0x1) +#define ID_AA64MMFR1_EL1_PAN2_SUPPORTED ULL(0x2) +#define ID_AA64MMFR1_EL1_PAN3_SUPPORTED ULL(0x3) + +#define ID_AA64MMFR1_EL1_VHE_SHIFT U(8) +#define ID_AA64MMFR1_EL1_VHE_MASK ULL(0xf) + +#define ID_AA64MMFR1_EL1_HCX_SHIFT U(40) +#define ID_AA64MMFR1_EL1_HCX_MASK ULL(0xf) +#define ID_AA64MMFR1_EL1_HCX_SUPPORTED ULL(0x1) +#define ID_AA64MMFR1_EL1_HCX_NOT_SUPPORTED ULL(0x0) + +/* ID_AA64MMFR2_EL1 definitions */ +#define ID_AA64MMFR2_EL1 S3_0_C0_C7_2 + +#define ID_AA64MMFR2_EL1_ST_SHIFT U(28) +#define ID_AA64MMFR2_EL1_ST_MASK ULL(0xf) + +#define ID_AA64MMFR2_EL1_CCIDX_SHIFT U(20) +#define ID_AA64MMFR2_EL1_CCIDX_MASK ULL(0xf) +#define ID_AA64MMFR2_EL1_CCIDX_LENGTH U(4) + +#define ID_AA64MMFR2_EL1_CNP_SHIFT U(0) +#define ID_AA64MMFR2_EL1_CNP_MASK ULL(0xf) + +#define ID_AA64MMFR2_EL1_NV_SHIFT U(24) +#define ID_AA64MMFR2_EL1_NV_MASK ULL(0xf) +#define ID_AA64MMFR2_EL1_NV_NOT_SUPPORTED ULL(0x0) +#define ID_AA64MMFR2_EL1_NV_SUPPORTED ULL(0x1) +#define ID_AA64MMFR2_EL1_NV2_SUPPORTED ULL(0x2) + +/* ID_AA64MMFR3_EL1 definitions */ +#define ID_AA64MMFR3_EL1 S3_0_C0_C7_3 + +#define ID_AA64MMFR3_EL1_S2POE_SHIFT U(20) +#define ID_AA64MMFR3_EL1_S2POE_MASK ULL(0xf) + +#define ID_AA64MMFR3_EL1_S1POE_SHIFT U(16) +#define ID_AA64MMFR3_EL1_S1POE_MASK ULL(0xf) + +#define ID_AA64MMFR3_EL1_S2PIE_SHIFT U(12) +#define ID_AA64MMFR3_EL1_S2PIE_MASK ULL(0xf) + +#define ID_AA64MMFR3_EL1_S1PIE_SHIFT U(8) +#define ID_AA64MMFR3_EL1_S1PIE_MASK ULL(0xf) + +#define ID_AA64MMFR3_EL1_TCRX_SHIFT U(0) +#define ID_AA64MMFR3_EL1_TCRX_MASK ULL(0xf) + +/* ID_AA64PFR1_EL1 definitions */ +#define ID_AA64PFR1_EL1_GCS_SHIFT U(44) +#define ID_AA64PFR1_EL1_GCS_MASK ULL(0xf) + +#define ID_AA64PFR1_EL1_SSBS_SHIFT U(4) +#define ID_AA64PFR1_EL1_SSBS_MASK ULL(0xf) + +#define SSBS_UNAVAILABLE ULL(0) /* No architectural SSBS support */ + +#define ID_AA64PFR1_EL1_BT_SHIFT U(0) +#define ID_AA64PFR1_EL1_BT_MASK ULL(0xf) + +#define BTI_IMPLEMENTED ULL(1) /* The BTI mechanism is implemented */ + +#define ID_AA64PFR1_EL1_MTE_SHIFT U(8) +#define ID_AA64PFR1_EL1_MTE_MASK ULL(0xf) + +#define ID_AA64PFR1_EL1_RNDR_TRAP_SHIFT U(28) +#define ID_AA64PFR1_EL1_RNDR_TRAP_MASK U(0xf) + +#define ID_AA64PFR1_EL1_RNG_TRAP_SUPPORTED ULL(0x1) +#define ID_AA64PFR1_EL1_RNG_TRAP_NOT_SUPPORTED ULL(0x0) + +/* ID_AA64PFR2_EL1 definitions */ +#define ID_AA64PFR2_EL1_MTEPERM_SHIFT U(0) +#define ID_AA64PFR2_EL1_MTEPERM_MASK ULL(0xf) + +#define ID_AA64PFR2_EL1_MTESTOREONLY_SHIFT U(4) +#define ID_AA64PFR2_EL1_MTESTOREONLY_MASK ULL(0xf) + +#define ID_AA64PFR2_EL1_MTEFAR_SHIFT U(8) +#define ID_AA64PFR2_EL1_MTEFAR_MASK ULL(0xf) + +#define VDISR_EL2 S3_4_C12_C1_1 +#define VSESR_EL2 S3_4_C5_C2_3 + +/* Memory Tagging Extension is not implemented */ +#define MTE_UNIMPLEMENTED U(0) +/* FEAT_MTE: MTE instructions accessible at EL0 are implemented */ +#define MTE_IMPLEMENTED_EL0 U(1) +/* FEAT_MTE2: Full MTE is implemented */ +#define MTE_IMPLEMENTED_ELX U(2) +/* + * FEAT_MTE3: MTE is implemented with support for + * asymmetric Tag Check Fault handling + */ +#define MTE_IMPLEMENTED_ASY U(3) + +#define ID_AA64PFR1_MPAM_FRAC_SHIFT ULL(16) +#define ID_AA64PFR1_MPAM_FRAC_MASK ULL(0xf) + +#define ID_AA64PFR1_EL1_SME_SHIFT U(24) +#define ID_AA64PFR1_EL1_SME_MASK ULL(0xf) +#define ID_AA64PFR1_EL1_SME_WIDTH U(4) +#define ID_AA64PFR1_EL1_SME_NOT_SUPPORTED ULL(0x0) +#define ID_AA64PFR1_EL1_SME_SUPPORTED ULL(0x1) +#define ID_AA64PFR1_EL1_SME2_SUPPORTED ULL(0x2) + +/* ID_PFR1_EL1 definitions */ +#define ID_PFR1_VIRTEXT_SHIFT U(12) +#define ID_PFR1_VIRTEXT_MASK U(0xf) +#define GET_VIRT_EXT(id) (((id) >> ID_PFR1_VIRTEXT_SHIFT) \ + & ID_PFR1_VIRTEXT_MASK) + +/* SCTLR definitions */ +#define SCTLR_EL2_RES1 ((U(1) << 29) | (U(1) << 28) | (U(1) << 23) | \ + (U(1) << 22) | (U(1) << 18) | (U(1) << 16) | \ + (U(1) << 11) | (U(1) << 5) | (U(1) << 4)) + +#define SCTLR_EL1_RES1 ((UL(1) << 29) | (UL(1) << 28) | (UL(1) << 23) | \ + (UL(1) << 22) | (UL(1) << 20) | (UL(1) << 11)) + +#define SCTLR_AARCH32_EL1_RES1 \ + ((U(1) << 23) | (U(1) << 22) | (U(1) << 11) | \ + (U(1) << 4) | (U(1) << 3)) + +#define SCTLR_EL3_RES1 ((U(1) << 29) | (U(1) << 28) | (U(1) << 23) | \ + (U(1) << 22) | (U(1) << 18) | (U(1) << 16) | \ + (U(1) << 11) | (U(1) << 5) | (U(1) << 4)) + +#define SCTLR_M_BIT (ULL(1) << 0) +#define SCTLR_A_BIT (ULL(1) << 1) +#define SCTLR_C_BIT (ULL(1) << 2) +#define SCTLR_SA_BIT (ULL(1) << 3) +#define SCTLR_SA0_BIT (ULL(1) << 4) +#define SCTLR_CP15BEN_BIT (ULL(1) << 5) +#define SCTLR_nAA_BIT (ULL(1) << 6) +#define SCTLR_ITD_BIT (ULL(1) << 7) +#define SCTLR_SED_BIT (ULL(1) << 8) +#define SCTLR_UMA_BIT (ULL(1) << 9) +#define SCTLR_EnRCTX_BIT (ULL(1) << 10) +#define SCTLR_EOS_BIT (ULL(1) << 11) +#define SCTLR_I_BIT (ULL(1) << 12) +#define SCTLR_EnDB_BIT (ULL(1) << 13) +#define SCTLR_DZE_BIT (ULL(1) << 14) +#define SCTLR_UCT_BIT (ULL(1) << 15) +#define SCTLR_NTWI_BIT (ULL(1) << 16) +#define SCTLR_NTWE_BIT (ULL(1) << 18) +#define SCTLR_WXN_BIT (ULL(1) << 19) +#define SCTLR_TSCXT_BIT (ULL(1) << 20) +#define SCTLR_IESB_BIT (ULL(1) << 21) +#define SCTLR_EIS_BIT (ULL(1) << 22) +#define SCTLR_SPAN_BIT (ULL(1) << 23) +#define SCTLR_E0E_BIT (ULL(1) << 24) +#define SCTLR_EE_BIT (ULL(1) << 25) +#define SCTLR_UCI_BIT (ULL(1) << 26) +#define SCTLR_EnDA_BIT (ULL(1) << 27) +#define SCTLR_nTLSMD_BIT (ULL(1) << 28) +#define SCTLR_LSMAOE_BIT (ULL(1) << 29) +#define SCTLR_EnIB_BIT (ULL(1) << 30) +#define SCTLR_EnIA_BIT (ULL(1) << 31) +#define SCTLR_BT0_BIT (ULL(1) << 35) +#define SCTLR_BT1_BIT (ULL(1) << 36) +#define SCTLR_BT_BIT (ULL(1) << 36) +#define SCTLR_ITFSB_BIT (ULL(1) << 37) +#define SCTLR_TCF0_SHIFT U(38) +#define SCTLR_TCF0_MASK ULL(3) +#define SCTLR_ENTP2_BIT (ULL(1) << 60) + +/* Tag Check Faults in EL0 have no effect on the PE */ +#define SCTLR_TCF0_NO_EFFECT U(0) +/* Tag Check Faults in EL0 cause a synchronous exception */ +#define SCTLR_TCF0_SYNC U(1) +/* Tag Check Faults in EL0 are asynchronously accumulated */ +#define SCTLR_TCF0_ASYNC U(2) +/* + * Tag Check Faults in EL0 cause a synchronous exception on reads, + * and are asynchronously accumulated on writes + */ +#define SCTLR_TCF0_SYNCR_ASYNCW U(3) + +#define SCTLR_TCF_SHIFT U(40) +#define SCTLR_TCF_MASK ULL(3) + +/* Tag Check Faults in EL1 have no effect on the PE */ +#define SCTLR_TCF_NO_EFFECT U(0) +/* Tag Check Faults in EL1 cause a synchronous exception */ +#define SCTLR_TCF_SYNC U(1) +/* Tag Check Faults in EL1 are asynchronously accumulated */ +#define SCTLR_TCF_ASYNC U(2) +/* + * Tag Check Faults in EL1 cause a synchronous exception on reads, + * and are asynchronously accumulated on writes + */ +#define SCTLR_TCF_SYNCR_ASYNCW U(3) + +#define SCTLR_ATA0_BIT (ULL(1) << 42) +#define SCTLR_ATA_BIT (ULL(1) << 43) +#define SCTLR_DSSBS_SHIFT U(44) +#define SCTLR_DSSBS_BIT (ULL(1) << SCTLR_DSSBS_SHIFT) +#define SCTLR_TWEDEn_BIT (ULL(1) << 45) +#define SCTLR_TWEDEL_SHIFT U(46) +#define SCTLR_TWEDEL_MASK ULL(0xf) +#define SCTLR_EnASR_BIT (ULL(1) << 54) +#define SCTLR_EnAS0_BIT (ULL(1) << 55) +#define SCTLR_EnALS_BIT (ULL(1) << 56) +#define SCTLR_EPAN_BIT (ULL(1) << 57) +#define SCTLR_RESET_VAL SCTLR_EL3_RES1 + +/* CPACR_EL1 definitions */ +#define CPACR_EL1_FPEN(x) ((x) << 20) +#define CPACR_EL1_FP_TRAP_EL0 UL(0x1) +#define CPACR_EL1_FP_TRAP_ALL UL(0x2) +#define CPACR_EL1_FP_TRAP_NONE UL(0x3) +#define CPACR_EL1_SMEN_SHIFT U(24) +#define CPACR_EL1_SMEN_MASK ULL(0x3) + +/* SCR definitions */ +#define SCR_RES1_BITS ((U(1) << 4) | (U(1) << 5)) +#define SCR_NSE_SHIFT U(62) +#define SCR_NSE_BIT (ULL(1) << SCR_NSE_SHIFT) +#define SCR_GPF_BIT (UL(1) << 48) +#define SCR_TWEDEL_SHIFT U(30) +#define SCR_TWEDEL_MASK ULL(0xf) +#define SCR_PIEN_BIT (UL(1) << 45) +#define SCR_TCR2EN_BIT (UL(1) << 43) +#define SCR_TRNDR_BIT (UL(1) << 40) +#define SCR_GCSEn_BIT (UL(1) << 39) +#define SCR_HXEn_BIT (UL(1) << 38) +#define SCR_ENTP2_SHIFT U(41) +#define SCR_ENTP2_BIT (UL(1) << SCR_ENTP2_SHIFT) +#define SCR_AMVOFFEN_SHIFT U(35) +#define SCR_AMVOFFEN_BIT (UL(1) << SCR_AMVOFFEN_SHIFT) +#define SCR_TWEDEn_BIT (UL(1) << 29) +#define SCR_ECVEN_BIT (UL(1) << 28) +#define SCR_FGTEN_BIT (UL(1) << 27) +#define SCR_ATA_BIT (UL(1) << 26) +#define SCR_EnSCXT_BIT (UL(1) << 25) +#define SCR_FIEN_BIT (UL(1) << 21) +#define SCR_EEL2_BIT (UL(1) << 18) +#define SCR_API_BIT (UL(1) << 17) +#define SCR_APK_BIT (UL(1) << 16) +#define SCR_TERR_BIT (UL(1) << 15) +#define SCR_TWE_BIT (UL(1) << 13) +#define SCR_TWI_BIT (UL(1) << 12) +#define SCR_ST_BIT (UL(1) << 11) +#define SCR_RW_BIT (UL(1) << 10) +#define SCR_SIF_BIT (UL(1) << 9) +#define SCR_HCE_BIT (UL(1) << 8) +#define SCR_SMD_BIT (UL(1) << 7) +#define SCR_EA_BIT (UL(1) << 3) +#define SCR_FIQ_BIT (UL(1) << 2) +#define SCR_IRQ_BIT (UL(1) << 1) +#define SCR_NS_BIT (UL(1) << 0) +#define SCR_VALID_BIT_MASK U(0x24000002F8F) +#define SCR_RESET_VAL SCR_RES1_BITS + +/* MDCR_EL3 definitions */ +#define MDCR_EnPMSN_BIT (ULL(1) << 36) +#define MDCR_MPMX_BIT (ULL(1) << 35) +#define MDCR_MCCD_BIT (ULL(1) << 34) +#define MDCR_SBRBE_SHIFT U(32) +#define MDCR_SBRBE_MASK ULL(0x3) +#define MDCR_NSTB(x) ((x) << 24) +#define MDCR_NSTB_EL1 ULL(0x3) +#define MDCR_NSTBE_BIT (ULL(1) << 26) +#define MDCR_MTPME_BIT (ULL(1) << 28) +#define MDCR_TDCC_BIT (ULL(1) << 27) +#define MDCR_SCCD_BIT (ULL(1) << 23) +#define MDCR_EPMAD_BIT (ULL(1) << 21) +#define MDCR_EDAD_BIT (ULL(1) << 20) +#define MDCR_TTRF_BIT (ULL(1) << 19) +#define MDCR_STE_BIT (ULL(1) << 18) +#define MDCR_SPME_BIT (ULL(1) << 17) +#define MDCR_SDD_BIT (ULL(1) << 16) +#define MDCR_SPD32(x) ((x) << 14) +#define MDCR_SPD32_LEGACY ULL(0x0) +#define MDCR_SPD32_DISABLE ULL(0x2) +#define MDCR_SPD32_ENABLE ULL(0x3) +#define MDCR_NSPB(x) ((x) << 12) +#define MDCR_NSPB_EL1 ULL(0x3) +#define MDCR_NSPBE_BIT (ULL(1) << 11) +#define MDCR_TDOSA_BIT (ULL(1) << 10) +#define MDCR_TDA_BIT (ULL(1) << 9) +#define MDCR_TPM_BIT (ULL(1) << 6) +#define MDCR_EL3_RESET_VAL MDCR_MTPME_BIT + +/* MDCR_EL2 definitions */ +#define MDCR_EL2_MTPME (U(1) << 28) +#define MDCR_EL2_HLP_BIT (U(1) << 26) +#define MDCR_EL2_E2TB(x) ((x) << 24) +#define MDCR_EL2_E2TB_EL1 U(0x3) +#define MDCR_EL2_HCCD_BIT (U(1) << 23) +#define MDCR_EL2_TTRF (U(1) << 19) +#define MDCR_EL2_HPMD_BIT (U(1) << 17) +#define MDCR_EL2_TPMS (U(1) << 14) +#define MDCR_EL2_E2PB(x) ((x) << 12) +#define MDCR_EL2_E2PB_EL1 U(0x3) +#define MDCR_EL2_TDRA_BIT (U(1) << 11) +#define MDCR_EL2_TDOSA_BIT (U(1) << 10) +#define MDCR_EL2_TDA_BIT (U(1) << 9) +#define MDCR_EL2_TDE_BIT (U(1) << 8) +#define MDCR_EL2_HPME_BIT (U(1) << 7) +#define MDCR_EL2_TPM_BIT (U(1) << 6) +#define MDCR_EL2_TPMCR_BIT (U(1) << 5) +#define MDCR_EL2_HPMN_MASK U(0x1f) +#define MDCR_EL2_RESET_VAL U(0x0) + +/* HSTR_EL2 definitions */ +#define HSTR_EL2_RESET_VAL U(0x0) +#define HSTR_EL2_T_MASK U(0xff) + +/* CNTHP_CTL_EL2 definitions */ +#define CNTHP_CTL_ENABLE_BIT (U(1) << 0) +#define CNTHP_CTL_RESET_VAL U(0x0) + +/* VTTBR_EL2 definitions */ +#define VTTBR_RESET_VAL ULL(0x0) +#define VTTBR_VMID_MASK ULL(0xff) +#define VTTBR_VMID_SHIFT U(48) +#define VTTBR_BADDR_MASK ULL(0xffffffffffff) +#define VTTBR_BADDR_SHIFT U(0) + +/* HCR definitions */ +#define HCR_RESET_VAL ULL(0x0) +#define HCR_AMVOFFEN_SHIFT U(51) +#define HCR_AMVOFFEN_BIT (ULL(1) << HCR_AMVOFFEN_SHIFT) +#define HCR_TEA_BIT (ULL(1) << 47) +#define HCR_API_BIT (ULL(1) << 41) +#define HCR_APK_BIT (ULL(1) << 40) +#define HCR_E2H_BIT (ULL(1) << 34) +#define HCR_HCD_BIT (ULL(1) << 29) +#define HCR_TGE_BIT (ULL(1) << 27) +#define HCR_RW_SHIFT U(31) +#define HCR_RW_BIT (ULL(1) << HCR_RW_SHIFT) +#define HCR_TWE_BIT (ULL(1) << 14) +#define HCR_TWI_BIT (ULL(1) << 13) +#define HCR_AMO_BIT (ULL(1) << 5) +#define HCR_IMO_BIT (ULL(1) << 4) +#define HCR_FMO_BIT (ULL(1) << 3) + +/* ISR definitions */ +#define ISR_A_SHIFT U(8) +#define ISR_I_SHIFT U(7) +#define ISR_F_SHIFT U(6) + +/* CNTHCTL_EL2 definitions */ +#define CNTHCTL_RESET_VAL U(0x0) +#define EVNTEN_BIT (U(1) << 2) +#define EL1PCEN_BIT (U(1) << 1) +#define EL1PCTEN_BIT (U(1) << 0) + +/* CNTKCTL_EL1 definitions */ +#define EL0PTEN_BIT (U(1) << 9) +#define EL0VTEN_BIT (U(1) << 8) +#define EL0PCTEN_BIT (U(1) << 0) +#define EL0VCTEN_BIT (U(1) << 1) +#define EVNTEN_BIT (U(1) << 2) +#define EVNTDIR_BIT (U(1) << 3) +#define EVNTI_SHIFT U(4) +#define EVNTI_MASK U(0xf) + +/* CPTR_EL3 definitions */ +#define TCPAC_BIT (U(1) << 31) +#define TAM_SHIFT U(30) +#define TAM_BIT (U(1) << TAM_SHIFT) +#define TTA_BIT (U(1) << 20) +#define ESM_BIT (U(1) << 12) +#define TFP_BIT (U(1) << 10) +#define CPTR_EZ_BIT (U(1) << 8) +#define CPTR_EL3_RESET_VAL ((TCPAC_BIT | TAM_BIT | TTA_BIT | TFP_BIT) & \ + ~(CPTR_EZ_BIT | ESM_BIT)) + +/* CPTR_EL2 definitions */ +#define CPTR_EL2_RES1 ((U(1) << 13) | (U(1) << 12) | (U(0x3ff))) +#define CPTR_EL2_TCPAC_BIT (U(1) << 31) +#define CPTR_EL2_TAM_SHIFT U(30) +#define CPTR_EL2_TAM_BIT (U(1) << CPTR_EL2_TAM_SHIFT) +#define CPTR_EL2_SMEN_MASK ULL(0x3) +#define CPTR_EL2_SMEN_SHIFT U(24) +#define CPTR_EL2_TTA_BIT (U(1) << 20) +#define CPTR_EL2_TSM_BIT (U(1) << 12) +#define CPTR_EL2_TFP_BIT (U(1) << 10) +#define CPTR_EL2_TZ_BIT (U(1) << 8) +#define CPTR_EL2_RESET_VAL CPTR_EL2_RES1 + +/* VTCR_EL2 definitions */ +#define VTCR_RESET_VAL U(0x0) +#define VTCR_EL2_MSA (U(1) << 31) + +/* CPSR/SPSR definitions */ +#define DAIF_FIQ_BIT (U(1) << 0) +#define DAIF_IRQ_BIT (U(1) << 1) +#define DAIF_ABT_BIT (U(1) << 2) +#define DAIF_DBG_BIT (U(1) << 3) +#define SPSR_DAIF_SHIFT U(6) +#define SPSR_DAIF_MASK U(0xf) + +#define SPSR_AIF_SHIFT U(6) +#define SPSR_AIF_MASK U(0x7) + +#define SPSR_E_SHIFT U(9) +#define SPSR_E_MASK U(0x1) +#define SPSR_E_LITTLE U(0x0) +#define SPSR_E_BIG U(0x1) + +#define SPSR_T_SHIFT U(5) +#define SPSR_T_MASK U(0x1) +#define SPSR_T_ARM U(0x0) +#define SPSR_T_THUMB U(0x1) + +#define SPSR_M_SHIFT U(4) +#define SPSR_M_MASK U(0x1) +#define SPSR_M_AARCH64 U(0x0) +#define SPSR_M_AARCH32 U(0x1) +#define SPSR_M_EL2H U(0x9) + +#define SPSR_EL_SHIFT U(2) +#define SPSR_EL_WIDTH U(2) + +#define SPSR_SSBS_SHIFT_AARCH64 U(12) +#define SPSR_SSBS_BIT_AARCH64 (ULL(1) << SPSR_SSBS_SHIFT_AARCH64) +#define SPSR_SSBS_SHIFT_AARCH32 U(23) +#define SPSR_SSBS_BIT_AARCH32 (ULL(1) << SPSR_SSBS_SHIFT_AARCH32) + +#define SPSR_PAN_BIT BIT_64(22) + +#define SPSR_DIT_BIT BIT(24) + +#define SPSR_TCO_BIT_AARCH64 BIT_64(25) + +#define DISABLE_ALL_EXCEPTIONS \ + (DAIF_FIQ_BIT | DAIF_IRQ_BIT | DAIF_ABT_BIT | DAIF_DBG_BIT) + +#define DISABLE_INTERRUPTS (DAIF_FIQ_BIT | DAIF_IRQ_BIT) + +/* + * RMR_EL3 definitions + */ +#define RMR_EL3_RR_BIT (U(1) << 1) +#define RMR_EL3_AA64_BIT (U(1) << 0) + +/* + * HI-VECTOR address for AArch32 state + */ +#define HI_VECTOR_BASE U(0xFFFF0000) + +/* + * TCR definitions + */ +#define TCR_EL3_RES1 ((ULL(1) << 31) | (ULL(1) << 23)) +#define TCR_EL2_RES1 ((ULL(1) << 31) | (ULL(1) << 23)) +#define TCR_EL1_IPS_SHIFT U(32) +#define TCR_EL2_PS_SHIFT U(16) +#define TCR_EL3_PS_SHIFT U(16) + +#define TCR_TxSZ_MIN ULL(16) +#define TCR_TxSZ_MAX ULL(39) +#define TCR_TxSZ_MAX_TTST ULL(48) + +#define TCR_T0SZ_SHIFT U(0) +#define TCR_T1SZ_SHIFT U(16) + +/* (internal) physical address size bits in EL3/EL1 */ +#define TCR_PS_BITS_4GB ULL(0x0) +#define TCR_PS_BITS_64GB ULL(0x1) +#define TCR_PS_BITS_1TB ULL(0x2) +#define TCR_PS_BITS_4TB ULL(0x3) +#define TCR_PS_BITS_16TB ULL(0x4) +#define TCR_PS_BITS_256TB ULL(0x5) + +#define ADDR_MASK_48_TO_63 ULL(0xFFFF000000000000) +#define ADDR_MASK_44_TO_47 ULL(0x0000F00000000000) +#define ADDR_MASK_42_TO_43 ULL(0x00000C0000000000) +#define ADDR_MASK_40_TO_41 ULL(0x0000030000000000) +#define ADDR_MASK_36_TO_39 ULL(0x000000F000000000) +#define ADDR_MASK_32_TO_35 ULL(0x0000000F00000000) + +#define TCR_RGN_INNER_NC (ULL(0x0) << 8) +#define TCR_RGN_INNER_WBA (ULL(0x1) << 8) +#define TCR_RGN_INNER_WT (ULL(0x2) << 8) +#define TCR_RGN_INNER_WBNA (ULL(0x3) << 8) + +#define TCR_RGN_OUTER_NC (ULL(0x0) << 10) +#define TCR_RGN_OUTER_WBA (ULL(0x1) << 10) +#define TCR_RGN_OUTER_WT (ULL(0x2) << 10) +#define TCR_RGN_OUTER_WBNA (ULL(0x3) << 10) + +#define TCR_SH_NON_SHAREABLE (ULL(0x0) << 12) +#define TCR_SH_OUTER_SHAREABLE (ULL(0x2) << 12) +#define TCR_SH_INNER_SHAREABLE (ULL(0x3) << 12) + +#define TCR_RGN1_INNER_NC (ULL(0x0) << 24) +#define TCR_RGN1_INNER_WBA (ULL(0x1) << 24) +#define TCR_RGN1_INNER_WT (ULL(0x2) << 24) +#define TCR_RGN1_INNER_WBNA (ULL(0x3) << 24) + +#define TCR_RGN1_OUTER_NC (ULL(0x0) << 26) +#define TCR_RGN1_OUTER_WBA (ULL(0x1) << 26) +#define TCR_RGN1_OUTER_WT (ULL(0x2) << 26) +#define TCR_RGN1_OUTER_WBNA (ULL(0x3) << 26) + +#define TCR_SH1_NON_SHAREABLE (ULL(0x0) << 28) +#define TCR_SH1_OUTER_SHAREABLE (ULL(0x2) << 28) +#define TCR_SH1_INNER_SHAREABLE (ULL(0x3) << 28) + +#define TCR_TG0_SHIFT U(14) +#define TCR_TG0_MASK ULL(3) +#define TCR_TG0_4K (ULL(0) << TCR_TG0_SHIFT) +#define TCR_TG0_64K (ULL(1) << TCR_TG0_SHIFT) +#define TCR_TG0_16K (ULL(2) << TCR_TG0_SHIFT) + +#define TCR_TG1_SHIFT U(30) +#define TCR_TG1_MASK ULL(3) +#define TCR_TG1_16K (ULL(1) << TCR_TG1_SHIFT) +#define TCR_TG1_4K (ULL(2) << TCR_TG1_SHIFT) +#define TCR_TG1_64K (ULL(3) << TCR_TG1_SHIFT) + +#define TCR_EPD0_BIT (ULL(1) << 7) +#define TCR_EPD1_BIT (ULL(1) << 23) + +#define MODE_SP_SHIFT U(0x0) +#define MODE_SP_MASK U(0x1) +#define MODE_SP_EL0 U(0x0) +#define MODE_SP_ELX U(0x1) + +#define MODE_RW_SHIFT U(0x4) +#define MODE_RW_MASK U(0x1) +#define MODE_RW_64 U(0x0) +#define MODE_RW_32 U(0x1) + +#define MODE_EL_SHIFT U(0x2) +#define MODE_EL_MASK U(0x3) +#define MODE_EL_WIDTH U(0x2) +#define MODE_EL3 U(0x3) +#define MODE_EL2 U(0x2) +#define MODE_EL1 U(0x1) +#define MODE_EL0 U(0x0) + +#define MODE32_SHIFT U(0) +#define MODE32_MASK U(0xf) +#define MODE32_usr U(0x0) +#define MODE32_fiq U(0x1) +#define MODE32_irq U(0x2) +#define MODE32_svc U(0x3) +#define MODE32_mon U(0x6) +#define MODE32_abt U(0x7) +#define MODE32_hyp U(0xa) +#define MODE32_und U(0xb) +#define MODE32_sys U(0xf) + +#define GET_RW(mode) (((mode) >> MODE_RW_SHIFT) & MODE_RW_MASK) +#define GET_EL(mode) (((mode) >> MODE_EL_SHIFT) & MODE_EL_MASK) +#define GET_SP(mode) (((mode) >> MODE_SP_SHIFT) & MODE_SP_MASK) +#define GET_M32(mode) (((mode) >> MODE32_SHIFT) & MODE32_MASK) + +#define SPSR_64(el, sp, daif) \ + (((MODE_RW_64 << MODE_RW_SHIFT) | \ + (((el) & MODE_EL_MASK) << MODE_EL_SHIFT) | \ + (((sp) & MODE_SP_MASK) << MODE_SP_SHIFT) | \ + (((daif) & SPSR_DAIF_MASK) << SPSR_DAIF_SHIFT)) & \ + (~(SPSR_SSBS_BIT_AARCH64))) + +#define SPSR_MODE32(mode, isa, endian, aif) \ + (((MODE_RW_32 << MODE_RW_SHIFT) | \ + (((mode) & MODE32_MASK) << MODE32_SHIFT) | \ + (((isa) & SPSR_T_MASK) << SPSR_T_SHIFT) | \ + (((endian) & SPSR_E_MASK) << SPSR_E_SHIFT) | \ + (((aif) & SPSR_AIF_MASK) << SPSR_AIF_SHIFT)) & \ + (~(SPSR_SSBS_BIT_AARCH32))) + +/* + * TTBR Definitions + */ +#define TTBR_CNP_BIT ULL(0x1) + +/* + * CTR_EL0 definitions + */ +#define CTR_CWG_SHIFT U(24) +#define CTR_CWG_MASK U(0xf) +#define CTR_ERG_SHIFT U(20) +#define CTR_ERG_MASK U(0xf) +#define CTR_DMINLINE_SHIFT U(16) +#define CTR_DMINLINE_MASK U(0xf) +#define CTR_L1IP_SHIFT U(14) +#define CTR_L1IP_MASK U(0x3) +#define CTR_IMINLINE_SHIFT U(0) +#define CTR_IMINLINE_MASK U(0xf) + +#define MAX_CACHE_LINE_SIZE U(0x800) /* 2KB */ + +/* Physical timer control register bit fields shifts and masks */ +#define CNTP_CTL_ENABLE_SHIFT U(0) +#define CNTP_CTL_IMASK_SHIFT U(1) +#define CNTP_CTL_ISTATUS_SHIFT U(2) + +#define CNTP_CTL_ENABLE_MASK U(1) +#define CNTP_CTL_IMASK_MASK U(1) +#define CNTP_CTL_ISTATUS_MASK U(1) + +/* Physical timer control macros */ +#define CNTP_CTL_ENABLE_BIT (U(1) << CNTP_CTL_ENABLE_SHIFT) +#define CNTP_CTL_IMASK_BIT (U(1) << CNTP_CTL_IMASK_SHIFT) + +/* Exception Syndrome register bits and bobs */ +#define ESR_EC_SHIFT U(26) +#define ESR_EC_MASK U(0x3f) +#define ESR_EC_LENGTH U(6) +#define ESR_ISS_SHIFT U(0) +#define ESR_ISS_LENGTH U(25) +#define EC_UNKNOWN U(0x0) +#define EC_WFE_WFI U(0x1) +#define EC_AARCH32_CP15_MRC_MCR U(0x3) +#define EC_AARCH32_CP15_MRRC_MCRR U(0x4) +#define EC_AARCH32_CP14_MRC_MCR U(0x5) +#define EC_AARCH32_CP14_LDC_STC U(0x6) +#define EC_FP_SIMD U(0x7) +#define EC_AARCH32_CP10_MRC U(0x8) +#define EC_AARCH32_CP14_MRRC_MCRR U(0xc) +#define EC_ILLEGAL U(0xe) +#define EC_AARCH32_SVC U(0x11) +#define EC_AARCH32_HVC U(0x12) +#define EC_AARCH32_SMC U(0x13) +#define EC_AARCH64_SVC U(0x15) +#define EC_AARCH64_HVC U(0x16) +#define EC_AARCH64_SMC U(0x17) +#define EC_AARCH64_SYS U(0x18) +#define EC_IMP_DEF_EL3 U(0x1f) +#define EC_IABORT_LOWER_EL U(0x20) +#define EC_IABORT_CUR_EL U(0x21) +#define EC_PC_ALIGN U(0x22) +#define EC_DABORT_LOWER_EL U(0x24) +#define EC_DABORT_CUR_EL U(0x25) +#define EC_SP_ALIGN U(0x26) +#define EC_AARCH32_FP U(0x28) +#define EC_AARCH64_FP U(0x2c) +#define EC_SERROR U(0x2f) +#define EC_BRK U(0x3c) + +/* + * External Abort bit in Instruction and Data Aborts synchronous exception + * syndromes. + */ +#define ESR_ISS_EABORT_EA_BIT U(9) + +#define EC_BITS(x) (((x) >> ESR_EC_SHIFT) & ESR_EC_MASK) + +/* Reset bit inside the Reset management register for EL3 (RMR_EL3) */ +#define RMR_RESET_REQUEST_SHIFT U(0x1) +#define RMR_WARM_RESET_CPU (U(1) << RMR_RESET_REQUEST_SHIFT) + +/******************************************************************************* + * Definitions of register offsets, fields and macros for CPU system + * instructions. + ******************************************************************************/ + +#define TLBI_ADDR_SHIFT U(12) +#define TLBI_ADDR_MASK ULL(0x00000FFFFFFFFFFF) +#define TLBI_ADDR(x) (((x) >> TLBI_ADDR_SHIFT) & TLBI_ADDR_MASK) + +/******************************************************************************* + * Definitions of register offsets and fields in the CNTCTLBase Frame of the + * system level implementation of the Generic Timer. + ******************************************************************************/ +#define CNTCTLBASE_CNTFRQ U(0x0) +#define CNTNSAR U(0x4) +#define CNTNSAR_NS_SHIFT(x) (x) + +#define CNTACR_BASE(x) (U(0x40) + ((x) << 2)) +#define CNTACR_RPCT_SHIFT U(0x0) +#define CNTACR_RVCT_SHIFT U(0x1) +#define CNTACR_RFRQ_SHIFT U(0x2) +#define CNTACR_RVOFF_SHIFT U(0x3) +#define CNTACR_RWVT_SHIFT U(0x4) +#define CNTACR_RWPT_SHIFT U(0x5) + +/******************************************************************************* + * Definitions of register offsets and fields in the CNTBaseN Frame of the + * system level implementation of the Generic Timer. + ******************************************************************************/ +/* Physical Count register. */ +#define CNTPCT_LO U(0x0) +/* Counter Frequency register. */ +#define CNTBASEN_CNTFRQ U(0x10) +/* Physical Timer CompareValue register. */ +#define CNTP_CVAL_LO U(0x20) +/* Physical Timer Control register. */ +#define CNTP_CTL U(0x2c) + +/* PMCR_EL0 definitions */ +#define PMCR_EL0_RESET_VAL U(0x0) +#define PMCR_EL0_N_SHIFT U(11) +#define PMCR_EL0_N_MASK U(0x1f) +#define PMCR_EL0_N_BITS (PMCR_EL0_N_MASK << PMCR_EL0_N_SHIFT) +#define PMCR_EL0_LP_BIT (U(1) << 7) +#define PMCR_EL0_LC_BIT (U(1) << 6) +#define PMCR_EL0_DP_BIT (U(1) << 5) +#define PMCR_EL0_X_BIT (U(1) << 4) +#define PMCR_EL0_D_BIT (U(1) << 3) +#define PMCR_EL0_C_BIT (U(1) << 2) +#define PMCR_EL0_P_BIT (U(1) << 1) +#define PMCR_EL0_E_BIT (U(1) << 0) + +/******************************************************************************* + * Definitions for system register interface to SVE + ******************************************************************************/ +#define ZCR_EL3 S3_6_C1_C2_0 +#define ZCR_EL2 S3_4_C1_C2_0 + +/* ZCR_EL3 definitions */ +#define ZCR_EL3_LEN_MASK U(0xf) + +/* ZCR_EL2 definitions */ +#define ZCR_EL2_LEN_MASK U(0xf) + +/******************************************************************************* + * Definitions for system register interface to SME as needed in EL3 + ******************************************************************************/ +#define ID_AA64SMFR0_EL1 S3_0_C0_C4_5 +#define SMCR_EL3 S3_6_C1_C2_6 + +/* ID_AA64SMFR0_EL1 definitions */ +#define ID_AA64SMFR0_EL1_SME_FA64_SHIFT U(63) +#define ID_AA64SMFR0_EL1_SME_FA64_MASK U(0x1) +#define ID_AA64SMFR0_EL1_SME_FA64_SUPPORTED U(0x1) +#define ID_AA64SMFR0_EL1_SME_VER_SHIFT U(55) +#define ID_AA64SMFR0_EL1_SME_VER_MASK ULL(0xf) +#define ID_AA64SMFR0_EL1_SME_INST_SUPPORTED ULL(0x0) +#define ID_AA64SMFR0_EL1_SME2_INST_SUPPORTED ULL(0x1) + +/* SMCR_ELx definitions */ +#define SMCR_ELX_LEN_SHIFT U(0) +#define SMCR_ELX_LEN_MAX U(0x1ff) +#define SMCR_ELX_FA64_BIT (U(1) << 31) +#define SMCR_ELX_EZT0_BIT (U(1) << 30) + +/******************************************************************************* + * Definitions of MAIR encodings for device and normal memory + ******************************************************************************/ +/* + * MAIR encodings for device memory attributes. + */ +#define MAIR_DEV_nGnRnE ULL(0x0) +#define MAIR_DEV_nGnRE ULL(0x4) +#define MAIR_DEV_nGRE ULL(0x8) +#define MAIR_DEV_GRE ULL(0xc) + +/* + * MAIR encodings for normal memory attributes. + * + * Cache Policy + * WT: Write Through + * WB: Write Back + * NC: Non-Cacheable + * + * Transient Hint + * NTR: Non-Transient + * TR: Transient + * + * Allocation Policy + * RA: Read Allocate + * WA: Write Allocate + * RWA: Read and Write Allocate + * NA: No Allocation + */ +#define MAIR_NORM_WT_TR_WA ULL(0x1) +#define MAIR_NORM_WT_TR_RA ULL(0x2) +#define MAIR_NORM_WT_TR_RWA ULL(0x3) +#define MAIR_NORM_NC ULL(0x4) +#define MAIR_NORM_WB_TR_WA ULL(0x5) +#define MAIR_NORM_WB_TR_RA ULL(0x6) +#define MAIR_NORM_WB_TR_RWA ULL(0x7) +#define MAIR_NORM_WT_NTR_NA ULL(0x8) +#define MAIR_NORM_WT_NTR_WA ULL(0x9) +#define MAIR_NORM_WT_NTR_RA ULL(0xa) +#define MAIR_NORM_WT_NTR_RWA ULL(0xb) +#define MAIR_NORM_WB_NTR_NA ULL(0xc) +#define MAIR_NORM_WB_NTR_WA ULL(0xd) +#define MAIR_NORM_WB_NTR_RA ULL(0xe) +#define MAIR_NORM_WB_NTR_RWA ULL(0xf) + +#define MAIR_NORM_OUTER_SHIFT U(4) + +#define MAKE_MAIR_NORMAL_MEMORY(inner, outer) \ + ((inner) | ((outer) << MAIR_NORM_OUTER_SHIFT)) + +/* PAR_EL1 fields */ +#define PAR_F_SHIFT U(0) +#define PAR_F_MASK ULL(0x1) +#define PAR_ADDR_SHIFT U(12) +#define PAR_ADDR_MASK (BIT(40) - ULL(1)) /* 40-bits-wide page address */ + +/******************************************************************************* + * Definitions for system register interface to SPE + ******************************************************************************/ +#define PMBLIMITR_EL1 S3_0_C9_C10_0 + +/******************************************************************************* + * Definitions for system register interface, shifts and masks for MPAM + ******************************************************************************/ +#define MPAMIDR_EL1 S3_0_C10_C4_4 +#define MPAM2_EL2 S3_4_C10_C5_0 +#define MPAMHCR_EL2 S3_4_C10_C4_0 +#define MPAM3_EL3 S3_6_C10_C5_0 + +#define MPAMIDR_EL1_VPMR_MAX_SHIFT ULL(18) +#define MPAMIDR_EL1_VPMR_MAX_MASK ULL(0x7) +/******************************************************************************* + * Definitions for system register interface to AMU for FEAT_AMUv1 + ******************************************************************************/ +#define AMCR_EL0 S3_3_C13_C2_0 +#define AMCFGR_EL0 S3_3_C13_C2_1 +#define AMCGCR_EL0 S3_3_C13_C2_2 +#define AMUSERENR_EL0 S3_3_C13_C2_3 +#define AMCNTENCLR0_EL0 S3_3_C13_C2_4 +#define AMCNTENSET0_EL0 S3_3_C13_C2_5 +#define AMCNTENCLR1_EL0 S3_3_C13_C3_0 +#define AMCNTENSET1_EL0 S3_3_C13_C3_1 + +/* Activity Monitor Group 0 Event Counter Registers */ +#define AMEVCNTR00_EL0 S3_3_C13_C4_0 +#define AMEVCNTR01_EL0 S3_3_C13_C4_1 +#define AMEVCNTR02_EL0 S3_3_C13_C4_2 +#define AMEVCNTR03_EL0 S3_3_C13_C4_3 + +/* Activity Monitor Group 0 Event Type Registers */ +#define AMEVTYPER00_EL0 S3_3_C13_C6_0 +#define AMEVTYPER01_EL0 S3_3_C13_C6_1 +#define AMEVTYPER02_EL0 S3_3_C13_C6_2 +#define AMEVTYPER03_EL0 S3_3_C13_C6_3 + +/* Activity Monitor Group 1 Event Counter Registers */ +#define AMEVCNTR10_EL0 S3_3_C13_C12_0 +#define AMEVCNTR11_EL0 S3_3_C13_C12_1 +#define AMEVCNTR12_EL0 S3_3_C13_C12_2 +#define AMEVCNTR13_EL0 S3_3_C13_C12_3 +#define AMEVCNTR14_EL0 S3_3_C13_C12_4 +#define AMEVCNTR15_EL0 S3_3_C13_C12_5 +#define AMEVCNTR16_EL0 S3_3_C13_C12_6 +#define AMEVCNTR17_EL0 S3_3_C13_C12_7 +#define AMEVCNTR18_EL0 S3_3_C13_C13_0 +#define AMEVCNTR19_EL0 S3_3_C13_C13_1 +#define AMEVCNTR1A_EL0 S3_3_C13_C13_2 +#define AMEVCNTR1B_EL0 S3_3_C13_C13_3 +#define AMEVCNTR1C_EL0 S3_3_C13_C13_4 +#define AMEVCNTR1D_EL0 S3_3_C13_C13_5 +#define AMEVCNTR1E_EL0 S3_3_C13_C13_6 +#define AMEVCNTR1F_EL0 S3_3_C13_C13_7 + +/* Activity Monitor Group 1 Event Type Registers */ +#define AMEVTYPER10_EL0 S3_3_C13_C14_0 +#define AMEVTYPER11_EL0 S3_3_C13_C14_1 +#define AMEVTYPER12_EL0 S3_3_C13_C14_2 +#define AMEVTYPER13_EL0 S3_3_C13_C14_3 +#define AMEVTYPER14_EL0 S3_3_C13_C14_4 +#define AMEVTYPER15_EL0 S3_3_C13_C14_5 +#define AMEVTYPER16_EL0 S3_3_C13_C14_6 +#define AMEVTYPER17_EL0 S3_3_C13_C14_7 +#define AMEVTYPER18_EL0 S3_3_C13_C15_0 +#define AMEVTYPER19_EL0 S3_3_C13_C15_1 +#define AMEVTYPER1A_EL0 S3_3_C13_C15_2 +#define AMEVTYPER1B_EL0 S3_3_C13_C15_3 +#define AMEVTYPER1C_EL0 S3_3_C13_C15_4 +#define AMEVTYPER1D_EL0 S3_3_C13_C15_5 +#define AMEVTYPER1E_EL0 S3_3_C13_C15_6 +#define AMEVTYPER1F_EL0 S3_3_C13_C15_7 + +/* AMCNTENSET0_EL0 definitions */ +#define AMCNTENSET0_EL0_Pn_SHIFT U(0) +#define AMCNTENSET0_EL0_Pn_MASK ULL(0xffff) + +/* AMCNTENSET1_EL0 definitions */ +#define AMCNTENSET1_EL0_Pn_SHIFT U(0) +#define AMCNTENSET1_EL0_Pn_MASK ULL(0xffff) + +/* AMCNTENCLR0_EL0 definitions */ +#define AMCNTENCLR0_EL0_Pn_SHIFT U(0) +#define AMCNTENCLR0_EL0_Pn_MASK ULL(0xffff) + +/* AMCNTENCLR1_EL0 definitions */ +#define AMCNTENCLR1_EL0_Pn_SHIFT U(0) +#define AMCNTENCLR1_EL0_Pn_MASK ULL(0xffff) + +/* AMCFGR_EL0 definitions */ +#define AMCFGR_EL0_NCG_SHIFT U(28) +#define AMCFGR_EL0_NCG_MASK U(0xf) +#define AMCFGR_EL0_N_SHIFT U(0) +#define AMCFGR_EL0_N_MASK U(0xff) + +/* AMCGCR_EL0 definitions */ +#define AMCGCR_EL0_CG0NC_SHIFT U(0) +#define AMCGCR_EL0_CG0NC_MASK U(0xff) +#define AMCGCR_EL0_CG1NC_SHIFT U(8) +#define AMCGCR_EL0_CG1NC_MASK U(0xff) + +/* MPAM register definitions */ +#define MPAM3_EL3_MPAMEN_BIT (ULL(1) << 63) +#define MPAM3_EL3_TRAPLOWER_BIT (ULL(1) << 62) +#define MPAMHCR_EL2_TRAP_MPAMIDR_EL1 (ULL(1) << 31) +#define MPAM3_EL3_RESET_VAL MPAM3_EL3_TRAPLOWER_BIT + +#define MPAM2_EL2_TRAPMPAM0EL1 (ULL(1) << 49) +#define MPAM2_EL2_TRAPMPAM1EL1 (ULL(1) << 48) + +#define MPAMIDR_HAS_HCR_BIT (ULL(1) << 17) + +/******************************************************************************* + * Definitions for system register interface to AMU for FEAT_AMUv1p1 + ******************************************************************************/ + +/* Definition for register defining which virtual offsets are implemented. */ +#define AMCG1IDR_EL0 S3_3_C13_C2_6 +#define AMCG1IDR_CTR_MASK ULL(0xffff) +#define AMCG1IDR_CTR_SHIFT U(0) +#define AMCG1IDR_VOFF_MASK ULL(0xffff) +#define AMCG1IDR_VOFF_SHIFT U(16) + +/* New bit added to AMCR_EL0 */ +#define AMCR_CG1RZ_SHIFT U(17) +#define AMCR_CG1RZ_BIT (ULL(0x1) << AMCR_CG1RZ_SHIFT) + +/* + * Definitions for virtual offset registers for architected activity monitor + * event counters. + * AMEVCNTVOFF01_EL2 intentionally left undefined, as it does not exist. + */ +#define AMEVCNTVOFF00_EL2 S3_4_C13_C8_0 +#define AMEVCNTVOFF02_EL2 S3_4_C13_C8_2 +#define AMEVCNTVOFF03_EL2 S3_4_C13_C8_3 + +/* + * Definitions for virtual offset registers for auxiliary activity monitor event + * counters. + */ +#define AMEVCNTVOFF10_EL2 S3_4_C13_C10_0 +#define AMEVCNTVOFF11_EL2 S3_4_C13_C10_1 +#define AMEVCNTVOFF12_EL2 S3_4_C13_C10_2 +#define AMEVCNTVOFF13_EL2 S3_4_C13_C10_3 +#define AMEVCNTVOFF14_EL2 S3_4_C13_C10_4 +#define AMEVCNTVOFF15_EL2 S3_4_C13_C10_5 +#define AMEVCNTVOFF16_EL2 S3_4_C13_C10_6 +#define AMEVCNTVOFF17_EL2 S3_4_C13_C10_7 +#define AMEVCNTVOFF18_EL2 S3_4_C13_C11_0 +#define AMEVCNTVOFF19_EL2 S3_4_C13_C11_1 +#define AMEVCNTVOFF1A_EL2 S3_4_C13_C11_2 +#define AMEVCNTVOFF1B_EL2 S3_4_C13_C11_3 +#define AMEVCNTVOFF1C_EL2 S3_4_C13_C11_4 +#define AMEVCNTVOFF1D_EL2 S3_4_C13_C11_5 +#define AMEVCNTVOFF1E_EL2 S3_4_C13_C11_6 +#define AMEVCNTVOFF1F_EL2 S3_4_C13_C11_7 + +/******************************************************************************* + * Realm management extension register definitions + ******************************************************************************/ +#define GPCCR_EL3 S3_6_C2_C1_6 +#define GPTBR_EL3 S3_6_C2_C1_4 + +#define SCXTNUM_EL2 S3_4_C13_C0_7 + +/******************************************************************************* + * RAS system registers + ******************************************************************************/ +#define DISR_EL1 S3_0_C12_C1_1 +#define DISR_A_BIT U(31) + +#define ERRIDR_EL1 S3_0_C5_C3_0 +#define ERRIDR_MASK U(0xffff) + +#define ERRSELR_EL1 S3_0_C5_C3_1 + +/* System register access to Standard Error Record registers */ +#define ERXFR_EL1 S3_0_C5_C4_0 +#define ERXCTLR_EL1 S3_0_C5_C4_1 +#define ERXSTATUS_EL1 S3_0_C5_C4_2 +#define ERXADDR_EL1 S3_0_C5_C4_3 +#define ERXPFGF_EL1 S3_0_C5_C4_4 +#define ERXPFGCTL_EL1 S3_0_C5_C4_5 +#define ERXPFGCDN_EL1 S3_0_C5_C4_6 +#define ERXMISC0_EL1 S3_0_C5_C5_0 +#define ERXMISC1_EL1 S3_0_C5_C5_1 + +#define ERXCTLR_ED_SHIFT U(0) +#define ERXCTLR_ED_BIT (U(1) << ERXCTLR_ED_SHIFT) +#define ERXCTLR_UE_BIT (U(1) << 4) + +#define ERXPFGCTL_UC_BIT (U(1) << 1) +#define ERXPFGCTL_UEU_BIT (U(1) << 2) +#define ERXPFGCTL_CDEN_BIT (U(1) << 31) + +/******************************************************************************* + * Armv8.3 Pointer Authentication Registers + ******************************************************************************/ +#define APIAKeyLo_EL1 S3_0_C2_C1_0 +#define APIAKeyHi_EL1 S3_0_C2_C1_1 +#define APIBKeyLo_EL1 S3_0_C2_C1_2 +#define APIBKeyHi_EL1 S3_0_C2_C1_3 +#define APDAKeyLo_EL1 S3_0_C2_C2_0 +#define APDAKeyHi_EL1 S3_0_C2_C2_1 +#define APDBKeyLo_EL1 S3_0_C2_C2_2 +#define APDBKeyHi_EL1 S3_0_C2_C2_3 +#define APGAKeyLo_EL1 S3_0_C2_C3_0 +#define APGAKeyHi_EL1 S3_0_C2_C3_1 + +/******************************************************************************* + * Armv8.4 Data Independent Timing Registers + ******************************************************************************/ +#define DIT S3_3_C4_C2_5 +#define DIT_BIT BIT(24) + +/******************************************************************************* + * Armv8.5 - new MSR encoding to directly access PSTATE.SSBS field + ******************************************************************************/ +#define SSBS S3_3_C4_C2_6 + +/******************************************************************************* + * Armv8.5 - Memory Tagging Extension Registers + ******************************************************************************/ +#define TFSRE0_EL1 S3_0_C5_C6_1 +#define TFSR_EL1 S3_0_C5_C6_0 +#define RGSR_EL1 S3_0_C1_C0_5 +#define GCR_EL1 S3_0_C1_C0_6 + +/******************************************************************************* + * Armv8.5 - Random Number Generator Registers + ******************************************************************************/ +#define RNDR S3_3_C2_C4_0 +#define RNDRRS S3_3_C2_C4_1 + +/******************************************************************************* + * FEAT_HCX - Extended Hypervisor Configuration Register + ******************************************************************************/ +#define HCRX_EL2 S3_4_C1_C2_2 +#define HCRX_EL2_MSCEn_BIT (UL(1) << 11) +#define HCRX_EL2_MCE2_BIT (UL(1) << 10) +#define HCRX_EL2_CMOW_BIT (UL(1) << 9) +#define HCRX_EL2_VFNMI_BIT (UL(1) << 8) +#define HCRX_EL2_VINMI_BIT (UL(1) << 7) +#define HCRX_EL2_TALLINT_BIT (UL(1) << 6) +#define HCRX_EL2_SMPME_BIT (UL(1) << 5) +#define HCRX_EL2_FGTnXS_BIT (UL(1) << 4) +#define HCRX_EL2_FnXS_BIT (UL(1) << 3) +#define HCRX_EL2_EnASR_BIT (UL(1) << 2) +#define HCRX_EL2_EnALS_BIT (UL(1) << 1) +#define HCRX_EL2_EnAS0_BIT (UL(1) << 0) +#define HCRX_EL2_INIT_VAL ULL(0x0) + +/******************************************************************************* + * FEAT_FGT - Definitions for Fine-Grained Trap registers + ******************************************************************************/ +#define HFGITR_EL2_INIT_VAL ULL(0x180000000000000) +#define HFGRTR_EL2_INIT_VAL ULL(0xC4000000000000) +#define HFGWTR_EL2_INIT_VAL ULL(0xC4000000000000) + +/******************************************************************************* + * FEAT_TCR2 - Extended Translation Control Register + ******************************************************************************/ +#define TCR2_EL2 S3_4_C2_C0_3 + +/******************************************************************************* + * Permission indirection and overlay + ******************************************************************************/ + +#define PIRE0_EL2 S3_4_C10_C2_2 +#define PIR_EL2 S3_4_C10_C2_3 +#define POR_EL2 S3_4_C10_C2_4 +#define S2PIR_EL2 S3_4_C10_C2_5 + +/******************************************************************************* + * FEAT_GCS - Guarded Control Stack Registers + ******************************************************************************/ +#define GCSCR_EL2 S3_4_C2_C5_0 +#define GCSPR_EL2 S3_4_C2_C5_1 + +/******************************************************************************* + * Definitions for DynamicIQ Shared Unit registers + ******************************************************************************/ +#define CLUSTERPWRDN_EL1 S3_0_c15_c3_6 + +/* CLUSTERPWRDN_EL1 register definitions */ +#define DSU_CLUSTER_PWR_OFF 0 +#define DSU_CLUSTER_PWR_ON 1 +#define DSU_CLUSTER_PWR_MASK U(1) +#define DSU_CLUSTER_MEM_RET BIT(1) + +/******************************************************************************* + * Definitions for CPU Power/Performance Management registers + ******************************************************************************/ + +#define CPUPPMCR_EL3 S3_6_C15_C2_0 +#define CPUPPMCR_EL3_MPMMPINCTL_SHIFT UINT64_C(0) +#define CPUPPMCR_EL3_MPMMPINCTL_MASK UINT64_C(0x1) + +#define CPUMPMMCR_EL3 S3_6_C15_C2_1 +#define CPUMPMMCR_EL3_MPMM_EN_SHIFT UINT64_C(0) +#define CPUMPMMCR_EL3_MPMM_EN_MASK UINT64_C(0x1) + +/* alternative system register encoding for the "sb" speculation barrier */ +#define SYSREG_SB S0_3_C3_C0_7 + +#endif /* ARCH_H */ diff --git a/include/arch/aarch64/arch_features.h b/include/arch/aarch64/arch_features.h new file mode 100644 index 0000000..cf8da5e --- /dev/null +++ b/include/arch/aarch64/arch_features.h @@ -0,0 +1,293 @@ +/* + * Copyright (c) 2019-2023, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ARCH_FEATURES_H +#define ARCH_FEATURES_H + +#include <stdbool.h> + +#include <arch_helpers.h> +#include <common/feat_detect.h> + +#define ISOLATE_FIELD(reg, feat) \ + ((unsigned int)(((reg) >> (feat)) & ID_REG_FIELD_MASK)) + +#define CREATE_FEATURE_FUNCS_VER(name, read_func, idvalue, guard) \ +static inline bool is_ ## name ## _supported(void) \ +{ \ + if ((guard) == FEAT_STATE_DISABLED) { \ + return false; \ + } \ + if ((guard) == FEAT_STATE_ALWAYS) { \ + return true; \ + } \ + return read_func() >= (idvalue); \ +} + +#define CREATE_FEATURE_FUNCS(name, idreg, idfield, guard) \ +static unsigned int read_ ## name ## _id_field(void) \ +{ \ + return ISOLATE_FIELD(read_ ## idreg(), idfield); \ +} \ +CREATE_FEATURE_FUNCS_VER(name, read_ ## name ## _id_field, 1U, guard) + +static inline bool is_armv7_gentimer_present(void) +{ + /* The Generic Timer is always present in an ARMv8-A implementation */ + return true; +} + +CREATE_FEATURE_FUNCS(feat_pan, id_aa64mmfr1_el1, ID_AA64MMFR1_EL1_PAN_SHIFT, + ENABLE_FEAT_PAN) +CREATE_FEATURE_FUNCS(feat_vhe, id_aa64mmfr1_el1, ID_AA64MMFR1_EL1_VHE_SHIFT, + ENABLE_FEAT_VHE) + +static inline bool is_armv8_2_ttcnp_present(void) +{ + return ((read_id_aa64mmfr2_el1() >> ID_AA64MMFR2_EL1_CNP_SHIFT) & + ID_AA64MMFR2_EL1_CNP_MASK) != 0U; +} + +static inline bool is_feat_pacqarma3_present(void) +{ + uint64_t mask_id_aa64isar2 = + (ID_AA64ISAR2_GPA3_MASK << ID_AA64ISAR2_GPA3_SHIFT) | + (ID_AA64ISAR2_APA3_MASK << ID_AA64ISAR2_APA3_SHIFT); + + /* If any of the fields is not zero, QARMA3 algorithm is present */ + return (read_id_aa64isar2_el1() & mask_id_aa64isar2) != 0U; +} + +static inline bool is_armv8_3_pauth_present(void) +{ + uint64_t mask_id_aa64isar1 = + (ID_AA64ISAR1_GPI_MASK << ID_AA64ISAR1_GPI_SHIFT) | + (ID_AA64ISAR1_GPA_MASK << ID_AA64ISAR1_GPA_SHIFT) | + (ID_AA64ISAR1_API_MASK << ID_AA64ISAR1_API_SHIFT) | + (ID_AA64ISAR1_APA_MASK << ID_AA64ISAR1_APA_SHIFT); + + /* + * If any of the fields is not zero or QARMA3 is present, + * PAuth is present + */ + return ((read_id_aa64isar1_el1() & mask_id_aa64isar1) != 0U || + is_feat_pacqarma3_present()); +} + +static inline bool is_armv8_4_ttst_present(void) +{ + return ((read_id_aa64mmfr2_el1() >> ID_AA64MMFR2_EL1_ST_SHIFT) & + ID_AA64MMFR2_EL1_ST_MASK) == 1U; +} + +static inline bool is_armv8_5_bti_present(void) +{ + return ((read_id_aa64pfr1_el1() >> ID_AA64PFR1_EL1_BT_SHIFT) & + ID_AA64PFR1_EL1_BT_MASK) == BTI_IMPLEMENTED; +} + +static inline unsigned int get_armv8_5_mte_support(void) +{ + return ((read_id_aa64pfr1_el1() >> ID_AA64PFR1_EL1_MTE_SHIFT) & + ID_AA64PFR1_EL1_MTE_MASK); +} + +CREATE_FEATURE_FUNCS(feat_sel2, id_aa64pfr0_el1, ID_AA64PFR0_SEL2_SHIFT, + ENABLE_FEAT_SEL2) +CREATE_FEATURE_FUNCS(feat_twed, id_aa64mmfr1_el1, ID_AA64MMFR1_EL1_TWED_SHIFT, + ENABLE_FEAT_TWED) +CREATE_FEATURE_FUNCS(feat_fgt, id_aa64mmfr0_el1, ID_AA64MMFR0_EL1_FGT_SHIFT, + ENABLE_FEAT_FGT) +CREATE_FEATURE_FUNCS(feat_mte_perm, id_aa64pfr2_el1, + ID_AA64PFR2_EL1_MTEPERM_SHIFT, ENABLE_FEAT_MTE_PERM) +CREATE_FEATURE_FUNCS(feat_ecv, id_aa64mmfr0_el1, ID_AA64MMFR0_EL1_ECV_SHIFT, + ENABLE_FEAT_ECV) +CREATE_FEATURE_FUNCS_VER(feat_ecv_v2, read_feat_ecv_id_field, + ID_AA64MMFR0_EL1_ECV_SELF_SYNCH, ENABLE_FEAT_ECV) + +CREATE_FEATURE_FUNCS(feat_rng, id_aa64isar0_el1, ID_AA64ISAR0_RNDR_SHIFT, + ENABLE_FEAT_RNG) +CREATE_FEATURE_FUNCS(feat_tcr2, id_aa64mmfr3_el1, ID_AA64MMFR3_EL1_TCRX_SHIFT, + ENABLE_FEAT_TCR2) + +CREATE_FEATURE_FUNCS(feat_s2poe, id_aa64mmfr3_el1, ID_AA64MMFR3_EL1_S2POE_SHIFT, + ENABLE_FEAT_S2POE) +CREATE_FEATURE_FUNCS(feat_s1poe, id_aa64mmfr3_el1, ID_AA64MMFR3_EL1_S1POE_SHIFT, + ENABLE_FEAT_S1POE) +static inline bool is_feat_sxpoe_supported(void) +{ + return is_feat_s1poe_supported() || is_feat_s2poe_supported(); +} + +CREATE_FEATURE_FUNCS(feat_s2pie, id_aa64mmfr3_el1, ID_AA64MMFR3_EL1_S2PIE_SHIFT, + ENABLE_FEAT_S2PIE) +CREATE_FEATURE_FUNCS(feat_s1pie, id_aa64mmfr3_el1, ID_AA64MMFR3_EL1_S1PIE_SHIFT, + ENABLE_FEAT_S1PIE) +static inline bool is_feat_sxpie_supported(void) +{ + return is_feat_s1pie_supported() || is_feat_s2pie_supported(); +} + +/* FEAT_GCS: Guarded Control Stack */ +CREATE_FEATURE_FUNCS(feat_gcs, id_aa64pfr1_el1, ID_AA64PFR1_EL1_GCS_SHIFT, + ENABLE_FEAT_GCS) + +/* FEAT_AMU: Activity Monitors Extension */ +CREATE_FEATURE_FUNCS(feat_amu, id_aa64pfr0_el1, ID_AA64PFR0_AMU_SHIFT, + ENABLE_FEAT_AMU) +CREATE_FEATURE_FUNCS_VER(feat_amuv1p1, read_feat_amu_id_field, + ID_AA64PFR0_AMU_V1P1, ENABLE_FEAT_AMUv1p1) + +/* + * Return MPAM version: + * + * 0x00: None Armv8.0 or later + * 0x01: v0.1 Armv8.4 or later + * 0x10: v1.0 Armv8.2 or later + * 0x11: v1.1 Armv8.4 or later + * + */ +static inline unsigned int read_feat_mpam_version(void) +{ + return (unsigned int)((((read_id_aa64pfr0_el1() >> + ID_AA64PFR0_MPAM_SHIFT) & ID_AA64PFR0_MPAM_MASK) << 4) | + ((read_id_aa64pfr1_el1() >> + ID_AA64PFR1_MPAM_FRAC_SHIFT) & ID_AA64PFR1_MPAM_FRAC_MASK)); +} + +CREATE_FEATURE_FUNCS_VER(feat_mpam, read_feat_mpam_version, 1U, + ENABLE_FEAT_MPAM) + +/* FEAT_HCX: Extended Hypervisor Configuration Register */ +CREATE_FEATURE_FUNCS(feat_hcx, id_aa64mmfr1_el1, ID_AA64MMFR1_EL1_HCX_SHIFT, + ENABLE_FEAT_HCX) + +static inline bool is_feat_rng_trap_present(void) +{ + return (((read_id_aa64pfr1_el1() >> ID_AA64PFR1_EL1_RNDR_TRAP_SHIFT) & + ID_AA64PFR1_EL1_RNDR_TRAP_MASK) + == ID_AA64PFR1_EL1_RNG_TRAP_SUPPORTED); +} + +static inline unsigned int get_armv9_2_feat_rme_support(void) +{ + /* + * Return the RME version, zero if not supported. This function can be + * used as both an integer value for the RME version or compared to zero + * to detect RME presence. + */ + return (unsigned int)(read_id_aa64pfr0_el1() >> + ID_AA64PFR0_FEAT_RME_SHIFT) & ID_AA64PFR0_FEAT_RME_MASK; +} + +/********************************************************************************* + * Function to identify the presence of FEAT_SB (Speculation Barrier Instruction) + ********************************************************************************/ +static inline unsigned int read_feat_sb_id_field(void) +{ + return ISOLATE_FIELD(read_id_aa64isar1_el1(), ID_AA64ISAR1_SB_SHIFT); +} + +/* FEAT_CSV2_2: Cache Speculation Variant 2 */ +CREATE_FEATURE_FUNCS(feat_csv2, id_aa64pfr0_el1, ID_AA64PFR0_CSV2_SHIFT, 0) +CREATE_FEATURE_FUNCS_VER(feat_csv2_2, read_feat_csv2_id_field, + ID_AA64PFR0_CSV2_2_SUPPORTED, ENABLE_FEAT_CSV2_2) + +/* FEAT_SPE: Statistical Profiling Extension */ +CREATE_FEATURE_FUNCS(feat_spe, id_aa64dfr0_el1, ID_AA64DFR0_PMS_SHIFT, + ENABLE_SPE_FOR_NS) + +/* FEAT_SVE: Scalable Vector Extension */ +CREATE_FEATURE_FUNCS(feat_sve, id_aa64pfr0_el1, ID_AA64PFR0_SVE_SHIFT, + ENABLE_SVE_FOR_NS) + +/* FEAT_RAS: Reliability, Accessibility, Serviceability */ +CREATE_FEATURE_FUNCS(feat_ras, id_aa64pfr0_el1, + ID_AA64PFR0_RAS_SHIFT, ENABLE_FEAT_RAS) + +/* FEAT_DIT: Data Independent Timing instructions */ +CREATE_FEATURE_FUNCS(feat_dit, id_aa64pfr0_el1, + ID_AA64PFR0_DIT_SHIFT, ENABLE_FEAT_DIT) + +CREATE_FEATURE_FUNCS(feat_sys_reg_trace, id_aa64dfr0_el1, + ID_AA64DFR0_TRACEVER_SHIFT, ENABLE_SYS_REG_TRACE_FOR_NS) + +/* FEAT_TRF: TraceFilter */ +CREATE_FEATURE_FUNCS(feat_trf, id_aa64dfr0_el1, ID_AA64DFR0_TRACEFILT_SHIFT, + ENABLE_TRF_FOR_NS) + +/* FEAT_NV2: Enhanced Nested Virtualization */ +CREATE_FEATURE_FUNCS(feat_nv, id_aa64mmfr2_el1, ID_AA64MMFR2_EL1_NV_SHIFT, 0) +CREATE_FEATURE_FUNCS_VER(feat_nv2, read_feat_nv_id_field, + ID_AA64MMFR2_EL1_NV2_SUPPORTED, CTX_INCLUDE_NEVE_REGS) + +/* FEAT_BRBE: Branch Record Buffer Extension */ +CREATE_FEATURE_FUNCS(feat_brbe, id_aa64dfr0_el1, ID_AA64DFR0_BRBE_SHIFT, + ENABLE_BRBE_FOR_NS) + +/* FEAT_TRBE: Trace Buffer Extension */ +CREATE_FEATURE_FUNCS(feat_trbe, id_aa64dfr0_el1, ID_AA64DFR0_TRACEBUFFER_SHIFT, + ENABLE_TRBE_FOR_NS) + +static inline unsigned int read_feat_sme_fa64_id_field(void) +{ + return ISOLATE_FIELD(read_id_aa64smfr0_el1(), + ID_AA64SMFR0_EL1_SME_FA64_SHIFT); +} +/* FEAT_SMEx: Scalar Matrix Extension */ +CREATE_FEATURE_FUNCS(feat_sme, id_aa64pfr1_el1, ID_AA64PFR1_EL1_SME_SHIFT, + ENABLE_SME_FOR_NS) +CREATE_FEATURE_FUNCS_VER(feat_sme2, read_feat_sme_id_field, + ID_AA64PFR1_EL1_SME2_SUPPORTED, ENABLE_SME2_FOR_NS) + +/******************************************************************************* + * Function to get hardware granularity support + ******************************************************************************/ + +static inline unsigned int read_id_aa64mmfr0_el0_tgran4_field(void) +{ + return ISOLATE_FIELD(read_id_aa64mmfr0_el1(), + ID_AA64MMFR0_EL1_TGRAN4_SHIFT); +} + +static inline unsigned int read_id_aa64mmfr0_el0_tgran16_field(void) +{ + return ISOLATE_FIELD(read_id_aa64mmfr0_el1(), + ID_AA64MMFR0_EL1_TGRAN16_SHIFT); +} + +static inline unsigned int read_id_aa64mmfr0_el0_tgran64_field(void) +{ + return ISOLATE_FIELD(read_id_aa64mmfr0_el1(), + ID_AA64MMFR0_EL1_TGRAN64_SHIFT); +} + +static inline unsigned int read_feat_pmuv3_id_field(void) +{ + return ISOLATE_FIELD(read_id_aa64dfr0_el1(), ID_AA64DFR0_PMUVER_SHIFT); +} + +static inline unsigned int read_feat_mtpmu_id_field(void) +{ + return ISOLATE_FIELD(read_id_aa64dfr0_el1(), ID_AA64DFR0_MTPMU_SHIFT); +} + +static inline bool is_feat_mtpmu_supported(void) +{ + if (DISABLE_MTPMU == FEAT_STATE_DISABLED) { + return false; + } + + if (DISABLE_MTPMU == FEAT_STATE_ALWAYS) { + return true; + } + + unsigned int mtpmu = read_feat_mtpmu_id_field(); + + return (mtpmu != 0U) && (mtpmu != ID_AA64DFR0_MTPMU_DISABLED); +} + +#endif /* ARCH_FEATURES_H */ diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h new file mode 100644 index 0000000..6fdc7e8 --- /dev/null +++ b/include/arch/aarch64/arch_helpers.h @@ -0,0 +1,749 @@ +/* + * Copyright (c) 2013-2023, Arm Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ARCH_HELPERS_H +#define ARCH_HELPERS_H + +#include <cdefs.h> +#include <stdbool.h> +#include <stdint.h> +#include <string.h> + +#include <arch.h> + +/********************************************************************** + * Macros which create inline functions to read or write CPU system + * registers + *********************************************************************/ + +#define _DEFINE_SYSREG_READ_FUNC(_name, _reg_name) \ +static inline u_register_t read_ ## _name(void) \ +{ \ + u_register_t v; \ + __asm__ volatile ("mrs %0, " #_reg_name : "=r" (v)); \ + return v; \ +} + +#define _DEFINE_SYSREG_READ_FUNC_NV(_name, _reg_name) \ +static inline u_register_t read_ ## _name(void) \ +{ \ + u_register_t v; \ + __asm__ ("mrs %0, " #_reg_name : "=r" (v)); \ + return v; \ +} + +#define _DEFINE_SYSREG_WRITE_FUNC(_name, _reg_name) \ +static inline void write_ ## _name(u_register_t v) \ +{ \ + __asm__ volatile ("msr " #_reg_name ", %0" : : "r" (v)); \ +} + +#define SYSREG_WRITE_CONST(reg_name, v) \ + __asm__ volatile ("msr " #reg_name ", %0" : : "i" (v)) + +/* Define read function for system register */ +#define DEFINE_SYSREG_READ_FUNC(_name) \ + _DEFINE_SYSREG_READ_FUNC(_name, _name) + +/* Define read & write function for system register */ +#define DEFINE_SYSREG_RW_FUNCS(_name) \ + _DEFINE_SYSREG_READ_FUNC(_name, _name) \ + _DEFINE_SYSREG_WRITE_FUNC(_name, _name) + +/* Define read & write function for renamed system register */ +#define DEFINE_RENAME_SYSREG_RW_FUNCS(_name, _reg_name) \ + _DEFINE_SYSREG_READ_FUNC(_name, _reg_name) \ + _DEFINE_SYSREG_WRITE_FUNC(_name, _reg_name) + +/* Define read function for renamed system register */ +#define DEFINE_RENAME_SYSREG_READ_FUNC(_name, _reg_name) \ + _DEFINE_SYSREG_READ_FUNC(_name, _reg_name) + +/* Define write function for renamed system register */ +#define DEFINE_RENAME_SYSREG_WRITE_FUNC(_name, _reg_name) \ + _DEFINE_SYSREG_WRITE_FUNC(_name, _reg_name) + +/* Define read function for ID register (w/o volatile qualifier) */ +#define DEFINE_IDREG_READ_FUNC(_name) \ + _DEFINE_SYSREG_READ_FUNC_NV(_name, _name) + +/* Define read function for renamed ID register (w/o volatile qualifier) */ +#define DEFINE_RENAME_IDREG_READ_FUNC(_name, _reg_name) \ + _DEFINE_SYSREG_READ_FUNC_NV(_name, _reg_name) + +/********************************************************************** + * Macros to create inline functions for system instructions + *********************************************************************/ + +/* Define function for simple system instruction */ +#define DEFINE_SYSOP_FUNC(_op) \ +static inline void _op(void) \ +{ \ + __asm__ (#_op); \ +} + +/* Define function for system instruction with register parameter */ +#define DEFINE_SYSOP_PARAM_FUNC(_op) \ +static inline void _op(uint64_t v) \ +{ \ + __asm__ (#_op " %0" : : "r" (v)); \ +} + +/* Define function for system instruction with type specifier */ +#define DEFINE_SYSOP_TYPE_FUNC(_op, _type) \ +static inline void _op ## _type(void) \ +{ \ + __asm__ (#_op " " #_type : : : "memory"); \ +} + +/* Define function for system instruction with register parameter */ +#define DEFINE_SYSOP_TYPE_PARAM_FUNC(_op, _type) \ +static inline void _op ## _type(uint64_t v) \ +{ \ + __asm__ (#_op " " #_type ", %0" : : "r" (v)); \ +} + +/******************************************************************************* + * TLB maintenance accessor prototypes + ******************************************************************************/ + +#if ERRATA_A57_813419 || ERRATA_A76_1286807 +/* + * Define function for TLBI instruction with type specifier that implements + * the workaround for errata 813419 of Cortex-A57 or errata 1286807 of + * Cortex-A76. + */ +#define DEFINE_TLBIOP_ERRATA_TYPE_FUNC(_type)\ +static inline void tlbi ## _type(void) \ +{ \ + __asm__("tlbi " #_type "\n" \ + "dsb ish\n" \ + "tlbi " #_type); \ +} + +/* + * Define function for TLBI instruction with register parameter that implements + * the workaround for errata 813419 of Cortex-A57 or errata 1286807 of + * Cortex-A76. + */ +#define DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(_type) \ +static inline void tlbi ## _type(uint64_t v) \ +{ \ + __asm__("tlbi " #_type ", %0\n" \ + "dsb ish\n" \ + "tlbi " #_type ", %0" : : "r" (v)); \ +} +#endif /* ERRATA_A57_813419 */ + +#if ERRATA_A53_819472 || ERRATA_A53_824069 || ERRATA_A53_827319 +/* + * Define function for DC instruction with register parameter that enables + * the workaround for errata 819472, 824069 and 827319 of Cortex-A53. + */ +#define DEFINE_DCOP_ERRATA_A53_TYPE_PARAM_FUNC(_name, _type) \ +static inline void dc ## _name(uint64_t v) \ +{ \ + __asm__("dc " #_type ", %0" : : "r" (v)); \ +} +#endif /* ERRATA_A53_819472 || ERRATA_A53_824069 || ERRATA_A53_827319 */ + +#if ERRATA_A57_813419 +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle1) +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle1is) +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle2) +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle2is) +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(alle3) +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(alle3is) +DEFINE_SYSOP_TYPE_FUNC(tlbi, vmalle1) +#elif ERRATA_A76_1286807 +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(alle1) +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(alle1is) +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(alle2) +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(alle2is) +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(alle3) +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(alle3is) +DEFINE_TLBIOP_ERRATA_TYPE_FUNC(vmalle1) +#else +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle1) +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle1is) +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle2) +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle2is) +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle3) +DEFINE_SYSOP_TYPE_FUNC(tlbi, alle3is) +DEFINE_SYSOP_TYPE_FUNC(tlbi, vmalle1) +#endif + +#if ERRATA_A57_813419 +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vaae1is) +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vaale1is) +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vae2is) +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vale2is) +DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(vae3is) +DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(vale3is) +#elif ERRATA_A76_1286807 +DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(vaae1is) +DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(vaale1is) +DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(vae2is) +DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(vale2is) +DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(vae3is) +DEFINE_TLBIOP_ERRATA_TYPE_PARAM_FUNC(vale3is) +#else +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vaae1is) +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vaale1is) +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vae2is) +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vale2is) +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vae3is) +DEFINE_SYSOP_TYPE_PARAM_FUNC(tlbi, vale3is) +#endif + +/******************************************************************************* + * Cache maintenance accessor prototypes + ******************************************************************************/ +DEFINE_SYSOP_TYPE_PARAM_FUNC(dc, isw) +DEFINE_SYSOP_TYPE_PARAM_FUNC(dc, cisw) +#if ERRATA_A53_827319 +DEFINE_DCOP_ERRATA_A53_TYPE_PARAM_FUNC(csw, cisw) +#else +DEFINE_SYSOP_TYPE_PARAM_FUNC(dc, csw) +#endif +#if ERRATA_A53_819472 || ERRATA_A53_824069 || ERRATA_A53_827319 +DEFINE_DCOP_ERRATA_A53_TYPE_PARAM_FUNC(cvac, civac) +#else +DEFINE_SYSOP_TYPE_PARAM_FUNC(dc, cvac) +#endif +DEFINE_SYSOP_TYPE_PARAM_FUNC(dc, ivac) +DEFINE_SYSOP_TYPE_PARAM_FUNC(dc, civac) +#if ERRATA_A53_819472 || ERRATA_A53_824069 || ERRATA_A53_827319 +DEFINE_DCOP_ERRATA_A53_TYPE_PARAM_FUNC(cvau, civac) +#else +DEFINE_SYSOP_TYPE_PARAM_FUNC(dc, cvau) +#endif +DEFINE_SYSOP_TYPE_PARAM_FUNC(dc, zva) + +/******************************************************************************* + * Address translation accessor prototypes + ******************************************************************************/ +DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s12e1r) +DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s12e1w) +DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s12e0r) +DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s12e0w) +DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s1e1r) +DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s1e2r) +DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s1e3r) + +/******************************************************************************* + * Strip Pointer Authentication Code + ******************************************************************************/ +DEFINE_SYSOP_PARAM_FUNC(xpaci) + +void flush_dcache_range(uintptr_t addr, size_t size); +void flush_dcache_to_popa_range(uintptr_t addr, size_t size); +void clean_dcache_range(uintptr_t addr, size_t size); +void inv_dcache_range(uintptr_t addr, size_t size); +bool is_dcache_enabled(void); + +void dcsw_op_louis(u_register_t op_type); +void dcsw_op_all(u_register_t op_type); + +void disable_mmu_el1(void); +void disable_mmu_el3(void); +void disable_mpu_el2(void); +void disable_mmu_icache_el1(void); +void disable_mmu_icache_el3(void); +void disable_mpu_icache_el2(void); + +/******************************************************************************* + * Misc. accessor prototypes + ******************************************************************************/ + +#define write_daifclr(val) SYSREG_WRITE_CONST(daifclr, val) +#define write_daifset(val) SYSREG_WRITE_CONST(daifset, val) + +DEFINE_SYSREG_RW_FUNCS(par_el1) +DEFINE_IDREG_READ_FUNC(id_pfr1_el1) +DEFINE_IDREG_READ_FUNC(id_aa64isar0_el1) +DEFINE_IDREG_READ_FUNC(id_aa64isar1_el1) +DEFINE_RENAME_IDREG_READ_FUNC(id_aa64isar2_el1, ID_AA64ISAR2_EL1) +DEFINE_IDREG_READ_FUNC(id_aa64pfr0_el1) +DEFINE_IDREG_READ_FUNC(id_aa64pfr1_el1) +DEFINE_RENAME_IDREG_READ_FUNC(id_aa64pfr2_el1, ID_AA64PFR2_EL1) +DEFINE_IDREG_READ_FUNC(id_aa64dfr0_el1) +DEFINE_IDREG_READ_FUNC(id_afr0_el1) +DEFINE_SYSREG_READ_FUNC(CurrentEl) +DEFINE_SYSREG_READ_FUNC(ctr_el0) +DEFINE_SYSREG_RW_FUNCS(daif) +DEFINE_SYSREG_RW_FUNCS(spsr_el1) +DEFINE_SYSREG_RW_FUNCS(spsr_el2) +DEFINE_SYSREG_RW_FUNCS(spsr_el3) +DEFINE_SYSREG_RW_FUNCS(elr_el1) +DEFINE_SYSREG_RW_FUNCS(elr_el2) +DEFINE_SYSREG_RW_FUNCS(elr_el3) +DEFINE_SYSREG_RW_FUNCS(mdccsr_el0) +DEFINE_SYSREG_RW_FUNCS(dbgdtrrx_el0) +DEFINE_SYSREG_RW_FUNCS(dbgdtrtx_el0) +DEFINE_SYSREG_RW_FUNCS(sp_el1) +DEFINE_SYSREG_RW_FUNCS(sp_el2) + +DEFINE_SYSOP_FUNC(wfi) +DEFINE_SYSOP_FUNC(wfe) +DEFINE_SYSOP_FUNC(sev) +DEFINE_SYSOP_TYPE_FUNC(dsb, sy) +DEFINE_SYSOP_TYPE_FUNC(dmb, sy) +DEFINE_SYSOP_TYPE_FUNC(dmb, st) +DEFINE_SYSOP_TYPE_FUNC(dmb, ld) +DEFINE_SYSOP_TYPE_FUNC(dsb, ish) +DEFINE_SYSOP_TYPE_FUNC(dsb, osh) +DEFINE_SYSOP_TYPE_FUNC(dsb, nsh) +DEFINE_SYSOP_TYPE_FUNC(dsb, ishst) +DEFINE_SYSOP_TYPE_FUNC(dsb, oshst) +DEFINE_SYSOP_TYPE_FUNC(dmb, oshld) +DEFINE_SYSOP_TYPE_FUNC(dmb, oshst) +DEFINE_SYSOP_TYPE_FUNC(dmb, osh) +DEFINE_SYSOP_TYPE_FUNC(dmb, nshld) +DEFINE_SYSOP_TYPE_FUNC(dmb, nshst) +DEFINE_SYSOP_TYPE_FUNC(dmb, nsh) +DEFINE_SYSOP_TYPE_FUNC(dmb, ishld) +DEFINE_SYSOP_TYPE_FUNC(dmb, ishst) +DEFINE_SYSOP_TYPE_FUNC(dmb, ish) +DEFINE_SYSOP_FUNC(isb) + +static inline void enable_irq(void) +{ + /* + * The compiler memory barrier will prevent the compiler from + * scheduling non-volatile memory access after the write to the + * register. + * + * This could happen if some initialization code issues non-volatile + * accesses to an area used by an interrupt handler, in the assumption + * that it is safe as the interrupts are disabled at the time it does + * that (according to program order). However, non-volatile accesses + * are not necessarily in program order relatively with volatile inline + * assembly statements (and volatile accesses). + */ + COMPILER_BARRIER(); + write_daifclr(DAIF_IRQ_BIT); + isb(); +} + +static inline void enable_fiq(void) +{ + COMPILER_BARRIER(); + write_daifclr(DAIF_FIQ_BIT); + isb(); +} + +static inline void enable_serror(void) +{ + COMPILER_BARRIER(); + write_daifclr(DAIF_ABT_BIT); + isb(); +} + +static inline void enable_debug_exceptions(void) +{ + COMPILER_BARRIER(); + write_daifclr(DAIF_DBG_BIT); + isb(); +} + +static inline void disable_irq(void) +{ + COMPILER_BARRIER(); + write_daifset(DAIF_IRQ_BIT); + isb(); +} + +static inline void disable_fiq(void) +{ + COMPILER_BARRIER(); + write_daifset(DAIF_FIQ_BIT); + isb(); +} + +static inline void disable_serror(void) +{ + COMPILER_BARRIER(); + write_daifset(DAIF_ABT_BIT); + isb(); +} + +static inline void disable_debug_exceptions(void) +{ + COMPILER_BARRIER(); + write_daifset(DAIF_DBG_BIT); + isb(); +} + +void __dead2 smc(uint64_t x0, uint64_t x1, uint64_t x2, uint64_t x3, + uint64_t x4, uint64_t x5, uint64_t x6, uint64_t x7); + +/******************************************************************************* + * System register accessor prototypes + ******************************************************************************/ +DEFINE_IDREG_READ_FUNC(midr_el1) +DEFINE_SYSREG_READ_FUNC(mpidr_el1) +DEFINE_IDREG_READ_FUNC(id_aa64mmfr0_el1) +DEFINE_IDREG_READ_FUNC(id_aa64mmfr1_el1) + +DEFINE_SYSREG_RW_FUNCS(scr_el3) +DEFINE_SYSREG_RW_FUNCS(hcr_el2) + +DEFINE_SYSREG_RW_FUNCS(vbar_el1) +DEFINE_SYSREG_RW_FUNCS(vbar_el2) +DEFINE_SYSREG_RW_FUNCS(vbar_el3) + +DEFINE_SYSREG_RW_FUNCS(sctlr_el1) +DEFINE_SYSREG_RW_FUNCS(sctlr_el2) +DEFINE_SYSREG_RW_FUNCS(sctlr_el3) + +DEFINE_SYSREG_RW_FUNCS(actlr_el1) +DEFINE_SYSREG_RW_FUNCS(actlr_el2) +DEFINE_SYSREG_RW_FUNCS(actlr_el3) + +DEFINE_SYSREG_RW_FUNCS(esr_el1) +DEFINE_SYSREG_RW_FUNCS(esr_el2) +DEFINE_SYSREG_RW_FUNCS(esr_el3) + +DEFINE_SYSREG_RW_FUNCS(afsr0_el1) +DEFINE_SYSREG_RW_FUNCS(afsr0_el2) +DEFINE_SYSREG_RW_FUNCS(afsr0_el3) + +DEFINE_SYSREG_RW_FUNCS(afsr1_el1) +DEFINE_SYSREG_RW_FUNCS(afsr1_el2) +DEFINE_SYSREG_RW_FUNCS(afsr1_el3) + +DEFINE_SYSREG_RW_FUNCS(far_el1) +DEFINE_SYSREG_RW_FUNCS(far_el2) +DEFINE_SYSREG_RW_FUNCS(far_el3) + +DEFINE_SYSREG_RW_FUNCS(mair_el1) +DEFINE_SYSREG_RW_FUNCS(mair_el2) +DEFINE_SYSREG_RW_FUNCS(mair_el3) + +DEFINE_SYSREG_RW_FUNCS(amair_el1) +DEFINE_SYSREG_RW_FUNCS(amair_el2) +DEFINE_SYSREG_RW_FUNCS(amair_el3) + +DEFINE_SYSREG_READ_FUNC(rvbar_el1) +DEFINE_SYSREG_READ_FUNC(rvbar_el2) +DEFINE_SYSREG_READ_FUNC(rvbar_el3) + +DEFINE_SYSREG_RW_FUNCS(rmr_el1) +DEFINE_SYSREG_RW_FUNCS(rmr_el2) +DEFINE_SYSREG_RW_FUNCS(rmr_el3) + +DEFINE_SYSREG_RW_FUNCS(tcr_el1) +DEFINE_SYSREG_RW_FUNCS(tcr_el2) +DEFINE_SYSREG_RW_FUNCS(tcr_el3) + +DEFINE_SYSREG_RW_FUNCS(ttbr0_el1) +DEFINE_SYSREG_RW_FUNCS(ttbr0_el2) +DEFINE_SYSREG_RW_FUNCS(ttbr0_el3) + +DEFINE_SYSREG_RW_FUNCS(ttbr1_el1) + +DEFINE_SYSREG_RW_FUNCS(vttbr_el2) + +DEFINE_SYSREG_RW_FUNCS(cptr_el2) +DEFINE_SYSREG_RW_FUNCS(cptr_el3) + +DEFINE_SYSREG_RW_FUNCS(cpacr_el1) +DEFINE_SYSREG_RW_FUNCS(cntfrq_el0) +DEFINE_SYSREG_RW_FUNCS(cnthp_ctl_el2) +DEFINE_SYSREG_RW_FUNCS(cnthp_tval_el2) +DEFINE_SYSREG_RW_FUNCS(cnthp_cval_el2) +DEFINE_SYSREG_RW_FUNCS(cntps_ctl_el1) +DEFINE_SYSREG_RW_FUNCS(cntps_tval_el1) +DEFINE_SYSREG_RW_FUNCS(cntps_cval_el1) +DEFINE_SYSREG_RW_FUNCS(cntp_ctl_el0) +DEFINE_SYSREG_RW_FUNCS(cntp_tval_el0) +DEFINE_SYSREG_RW_FUNCS(cntp_cval_el0) +DEFINE_SYSREG_READ_FUNC(cntpct_el0) +DEFINE_SYSREG_RW_FUNCS(cnthctl_el2) + +DEFINE_SYSREG_RW_FUNCS(vtcr_el2) + +#define get_cntp_ctl_enable(x) (((x) >> CNTP_CTL_ENABLE_SHIFT) & \ + CNTP_CTL_ENABLE_MASK) +#define get_cntp_ctl_imask(x) (((x) >> CNTP_CTL_IMASK_SHIFT) & \ + CNTP_CTL_IMASK_MASK) +#define get_cntp_ctl_istatus(x) (((x) >> CNTP_CTL_ISTATUS_SHIFT) & \ + CNTP_CTL_ISTATUS_MASK) + +#define set_cntp_ctl_enable(x) ((x) |= (U(1) << CNTP_CTL_ENABLE_SHIFT)) +#define set_cntp_ctl_imask(x) ((x) |= (U(1) << CNTP_CTL_IMASK_SHIFT)) + +#define clr_cntp_ctl_enable(x) ((x) &= ~(U(1) << CNTP_CTL_ENABLE_SHIFT)) +#define clr_cntp_ctl_imask(x) ((x) &= ~(U(1) << CNTP_CTL_IMASK_SHIFT)) + +DEFINE_SYSREG_RW_FUNCS(tpidr_el3) + +DEFINE_SYSREG_RW_FUNCS(cntvoff_el2) + +DEFINE_SYSREG_RW_FUNCS(vpidr_el2) +DEFINE_SYSREG_RW_FUNCS(vmpidr_el2) + +DEFINE_SYSREG_RW_FUNCS(hacr_el2) +DEFINE_SYSREG_RW_FUNCS(hpfar_el2) +DEFINE_SYSREG_RW_FUNCS(tpidr_el2) +DEFINE_SYSREG_RW_FUNCS(dbgvcr32_el2) +DEFINE_RENAME_SYSREG_RW_FUNCS(ich_hcr_el2, ICH_HCR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(ich_vmcr_el2, ICH_VMCR_EL2) + +DEFINE_SYSREG_READ_FUNC(isr_el1) + +DEFINE_SYSREG_RW_FUNCS(mdcr_el2) +DEFINE_SYSREG_RW_FUNCS(mdcr_el3) +DEFINE_SYSREG_RW_FUNCS(hstr_el2) +DEFINE_SYSREG_RW_FUNCS(pmcr_el0) + +/* GICv3 System Registers */ + +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_sre_el1, ICC_SRE_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_sre_el2, ICC_SRE_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_sre_el3, ICC_SRE_EL3) +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_pmr_el1, ICC_PMR_EL1) +DEFINE_RENAME_SYSREG_READ_FUNC(icc_rpr_el1, ICC_RPR_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_igrpen1_el3, ICC_IGRPEN1_EL3) +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_igrpen1_el1, ICC_IGRPEN1_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_igrpen0_el1, ICC_IGRPEN0_EL1) +DEFINE_RENAME_SYSREG_READ_FUNC(icc_hppir0_el1, ICC_HPPIR0_EL1) +DEFINE_RENAME_SYSREG_READ_FUNC(icc_hppir1_el1, ICC_HPPIR1_EL1) +DEFINE_RENAME_SYSREG_READ_FUNC(icc_iar0_el1, ICC_IAR0_EL1) +DEFINE_RENAME_SYSREG_READ_FUNC(icc_iar1_el1, ICC_IAR1_EL1) +DEFINE_RENAME_SYSREG_WRITE_FUNC(icc_eoir0_el1, ICC_EOIR0_EL1) +DEFINE_RENAME_SYSREG_WRITE_FUNC(icc_eoir1_el1, ICC_EOIR1_EL1) +DEFINE_RENAME_SYSREG_WRITE_FUNC(icc_sgi0r_el1, ICC_SGI0R_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_sgi1r, ICC_SGI1R) +DEFINE_RENAME_SYSREG_RW_FUNCS(icc_asgi1r, ICC_ASGI1R) + +DEFINE_RENAME_SYSREG_READ_FUNC(amcfgr_el0, AMCFGR_EL0) +DEFINE_RENAME_SYSREG_READ_FUNC(amcgcr_el0, AMCGCR_EL0) +DEFINE_RENAME_SYSREG_READ_FUNC(amcg1idr_el0, AMCG1IDR_EL0) +DEFINE_RENAME_SYSREG_RW_FUNCS(amcr_el0, AMCR_EL0) +DEFINE_RENAME_SYSREG_RW_FUNCS(amcntenclr0_el0, AMCNTENCLR0_EL0) +DEFINE_RENAME_SYSREG_RW_FUNCS(amcntenset0_el0, AMCNTENSET0_EL0) +DEFINE_RENAME_SYSREG_RW_FUNCS(amcntenclr1_el0, AMCNTENCLR1_EL0) +DEFINE_RENAME_SYSREG_RW_FUNCS(amcntenset1_el0, AMCNTENSET1_EL0) + +DEFINE_RENAME_SYSREG_RW_FUNCS(pmblimitr_el1, PMBLIMITR_EL1) + +DEFINE_RENAME_SYSREG_WRITE_FUNC(zcr_el3, ZCR_EL3) +DEFINE_RENAME_SYSREG_WRITE_FUNC(zcr_el2, ZCR_EL2) + +DEFINE_RENAME_IDREG_READ_FUNC(id_aa64smfr0_el1, ID_AA64SMFR0_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(smcr_el3, SMCR_EL3) + +DEFINE_RENAME_SYSREG_READ_FUNC(erridr_el1, ERRIDR_EL1) +DEFINE_RENAME_SYSREG_WRITE_FUNC(errselr_el1, ERRSELR_EL1) + +DEFINE_RENAME_SYSREG_READ_FUNC(erxfr_el1, ERXFR_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(erxctlr_el1, ERXCTLR_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(erxstatus_el1, ERXSTATUS_EL1) +DEFINE_RENAME_SYSREG_READ_FUNC(erxaddr_el1, ERXADDR_EL1) +DEFINE_RENAME_SYSREG_READ_FUNC(erxmisc0_el1, ERXMISC0_EL1) +DEFINE_RENAME_SYSREG_READ_FUNC(erxmisc1_el1, ERXMISC1_EL1) + +DEFINE_RENAME_SYSREG_RW_FUNCS(scxtnum_el2, SCXTNUM_EL2) + +/* Armv8.1 VHE Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(contextidr_el2, CONTEXTIDR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(ttbr1_el2, TTBR1_EL2) + +/* Armv8.2 ID Registers */ +DEFINE_RENAME_IDREG_READ_FUNC(id_aa64mmfr2_el1, ID_AA64MMFR2_EL1) + +/* Armv8.2 RAS Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(vdisr_el2, VDISR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(vsesr_el2, VSESR_EL2) + +/* Armv8.2 MPAM Registers */ +DEFINE_RENAME_SYSREG_READ_FUNC(mpamidr_el1, MPAMIDR_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpam3_el3, MPAM3_EL3) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpam2_el2, MPAM2_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamhcr_el2, MPAMHCR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpm0_el2, MPAMVPM0_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpm1_el2, MPAMVPM1_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpm2_el2, MPAMVPM2_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpm3_el2, MPAMVPM3_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpm4_el2, MPAMVPM4_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpm5_el2, MPAMVPM5_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpm6_el2, MPAMVPM6_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpm7_el2, MPAMVPM7_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(mpamvpmv_el2, MPAMVPMV_EL2) + +/* Armv8.3 Pointer Authentication Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(apiakeyhi_el1, APIAKeyHi_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(apiakeylo_el1, APIAKeyLo_EL1) + +/* Armv8.4 Data Independent Timing Register */ +DEFINE_RENAME_SYSREG_RW_FUNCS(dit, DIT) + +/* Armv8.4 FEAT_TRF Register */ +DEFINE_RENAME_SYSREG_RW_FUNCS(trfcr_el2, TRFCR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(vncr_el2, VNCR_EL2) + +/* Armv8.5 MTE Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(tfsre0_el1, TFSRE0_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(tfsr_el1, TFSR_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(rgsr_el1, RGSR_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(gcr_el1, GCR_EL1) +DEFINE_RENAME_SYSREG_RW_FUNCS(tfsr_el2, TFSR_EL2) + +/* Armv8.5 FEAT_RNG Registers */ +DEFINE_RENAME_SYSREG_READ_FUNC(rndr, RNDR) +DEFINE_RENAME_SYSREG_READ_FUNC(rndrrs, RNDRRS) + +/* Armv8.6 FEAT_FGT Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(hdfgrtr_el2, HDFGRTR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(hafgrtr_el2, HAFGRTR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(hdfgwtr_el2, HDFGWTR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(hfgitr_el2, HFGITR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(hfgrtr_el2, HFGRTR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(hfgwtr_el2, HFGWTR_EL2) + +/* ARMv8.6 FEAT_ECV Register */ +DEFINE_RENAME_SYSREG_RW_FUNCS(cntpoff_el2, CNTPOFF_EL2) + +/* FEAT_HCX Register */ +DEFINE_RENAME_SYSREG_RW_FUNCS(hcrx_el2, HCRX_EL2) + +/* Armv8.9 system registers */ +DEFINE_RENAME_IDREG_READ_FUNC(id_aa64mmfr3_el1, ID_AA64MMFR3_EL1) + +/* FEAT_TCR2 Register */ +DEFINE_RENAME_SYSREG_RW_FUNCS(tcr2_el2, TCR2_EL2) + +/* FEAT_SxPIE Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(pire0_el2, PIRE0_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(pir_el2, PIR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(s2pir_el2, S2PIR_EL2) + +/* FEAT_SxPOE Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(por_el2, POR_EL2) + +/* FEAT_GCS Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(gcscr_el2, GCSCR_EL2) +DEFINE_RENAME_SYSREG_RW_FUNCS(gcspr_el2, GCSPR_EL2) + +/* DynamIQ Shared Unit power management */ +DEFINE_RENAME_SYSREG_RW_FUNCS(clusterpwrdn_el1, CLUSTERPWRDN_EL1) + +/* CPU Power/Performance Management registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(cpuppmcr_el3, CPUPPMCR_EL3) +DEFINE_RENAME_SYSREG_RW_FUNCS(cpumpmmcr_el3, CPUMPMMCR_EL3) + +/* Armv9.2 RME Registers */ +DEFINE_RENAME_SYSREG_RW_FUNCS(gptbr_el3, GPTBR_EL3) +DEFINE_RENAME_SYSREG_RW_FUNCS(gpccr_el3, GPCCR_EL3) + +#define IS_IN_EL(x) \ + (GET_EL(read_CurrentEl()) == MODE_EL##x) + +#define IS_IN_EL1() IS_IN_EL(1) +#define IS_IN_EL2() IS_IN_EL(2) +#define IS_IN_EL3() IS_IN_EL(3) + +static inline unsigned int get_current_el(void) +{ + return GET_EL(read_CurrentEl()); +} + +static inline unsigned int get_current_el_maybe_constant(void) +{ +#if defined(IMAGE_AT_EL1) + return 1; +#elif defined(IMAGE_AT_EL2) + return 2; /* no use-case in TF-A */ +#elif defined(IMAGE_AT_EL3) + return 3; +#else + /* + * If we do not know which exception level this is being built for + * (e.g. built for library), fall back to run-time detection. + */ + return get_current_el(); +#endif +} + +/* + * Check if an EL is implemented from AA64PFR0 register fields. + */ +static inline uint64_t el_implemented(unsigned int el) +{ + if (el > 3U) { + return EL_IMPL_NONE; + } else { + unsigned int shift = ID_AA64PFR0_EL1_SHIFT * el; + + return (read_id_aa64pfr0_el1() >> shift) & ID_AA64PFR0_ELX_MASK; + } +} + +/* + * TLBIPAALLOS instruction + * (TLB Inivalidate GPT Information by PA, + * All Entries, Outer Shareable) + */ +static inline void tlbipaallos(void) +{ + __asm__("SYS #6,c8,c1,#4"); +} + +/* + * Invalidate TLBs of GPT entries by Physical address, last level. + * + * @pa: the starting address for the range + * of invalidation + * @size: size of the range of invalidation + */ +void gpt_tlbi_by_pa_ll(uint64_t pa, size_t size); + + +/* Previously defined accessor functions with incomplete register names */ + +#define read_current_el() read_CurrentEl() + +#define dsb() dsbsy() + +#define read_midr() read_midr_el1() + +#define read_mpidr() read_mpidr_el1() + +#define read_scr() read_scr_el3() +#define write_scr(_v) write_scr_el3(_v) + +#define read_hcr() read_hcr_el2() +#define write_hcr(_v) write_hcr_el2(_v) + +#define read_cpacr() read_cpacr_el1() +#define write_cpacr(_v) write_cpacr_el1(_v) + +#define read_clusterpwrdn() read_clusterpwrdn_el1() +#define write_clusterpwrdn(_v) write_clusterpwrdn_el1(_v) + +#if ERRATA_SPECULATIVE_AT +/* + * Assuming SCTLR.M bit is already enabled + * 1. Enable page table walk by clearing TCR_EL1.EPDx bits + * 2. Execute AT instruction for lower EL1/0 + * 3. Disable page table walk by setting TCR_EL1.EPDx bits + */ +#define AT(_at_inst, _va) \ +{ \ + assert((read_sctlr_el1() & SCTLR_M_BIT) != 0ULL); \ + write_tcr_el1(read_tcr_el1() & ~(TCR_EPD0_BIT | TCR_EPD1_BIT)); \ + isb(); \ + _at_inst(_va); \ + write_tcr_el1(read_tcr_el1() | (TCR_EPD0_BIT | TCR_EPD1_BIT)); \ + isb(); \ +} +#else +#define AT(_at_inst, _va) _at_inst(_va) +#endif + +#endif /* ARCH_HELPERS_H */ diff --git a/include/arch/aarch64/asm_macros.S b/include/arch/aarch64/asm_macros.S new file mode 100644 index 0000000..d09ad0f --- /dev/null +++ b/include/arch/aarch64/asm_macros.S @@ -0,0 +1,320 @@ +/* + * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef ASM_MACROS_S +#define ASM_MACROS_S + +#include <arch.h> +#include <common/asm_macros_common.S> +#include <lib/spinlock.h> + +/* + * TLBI instruction with type specifier that implements the workaround for + * errata 813419 of Cortex-A57 or errata 1286807 of Cortex-A76. + */ +#if ERRATA_A57_813419 || ERRATA_A76_1286807 +#define TLB_INVALIDATE(_type) \ + tlbi _type; \ + dsb ish; \ + tlbi _type +#else +#define TLB_INVALIDATE(_type) \ + tlbi _type +#endif + + + /* + * Create a stack frame at the start of an assembly function. Will also + * add all necessary call frame information (cfi) directives for a + * pretty stack trace. This is necessary as there is quite a bit of + * flexibility within a stack frame and the stack pointer can move + * around throughout the function. If the debugger isn't told where to + * find things, it gets lost, gives up and displays nothing. So inform + * the debugger of what's where. Anchor the Canonical Frame Address + * (CFA; the thing used to track what's where) to the frame pointer as + * that's not expected to change in the function body and no extra + * bookkeeping will be necessary, allowing free movement of the sp + * + * _frame_size: requested space for caller to use. Must be a mutliple + * of 16 for stack pointer alignment + */ + .macro func_prologue _frame_size=0 + .if \_frame_size & 0xf + .error "frame_size must have stack pointer alignment (multiple of 16)" + .endif + + /* put frame record at top of frame */ + stp x29, x30, [sp, #-0x10]! + mov x29,sp + .if \_frame_size + sub sp, sp, #\_frame_size + .endif + + /* point CFA to start of frame record, i.e. x29 + 0x10 */ + .cfi_def_cfa x29, 0x10 + /* inform it about x29, x30 locations */ + .cfi_offset x30, -0x8 + .cfi_offset x29, -0x10 + .endm + + /* + * Clear stack frame at the end of an assembly function. + * + * _frame_size: the value passed to func_prologue + */ + .macro func_epilogue _frame_size=0 + /* remove requested space */ + .if \_frame_size + add sp, sp, #\_frame_size + .endif + ldp x29, x30, [sp], #0x10 + .endm + + + .macro dcache_line_size reg, tmp + mrs \tmp, ctr_el0 + ubfx \tmp, \tmp, #16, #4 + mov \reg, #4 + lsl \reg, \reg, \tmp + .endm + + + .macro icache_line_size reg, tmp + mrs \tmp, ctr_el0 + and \tmp, \tmp, #0xf + mov \reg, #4 + lsl \reg, \reg, \tmp + .endm + + + .macro smc_check label + mrs x0, esr_el3 + ubfx x0, x0, #ESR_EC_SHIFT, #ESR_EC_LENGTH + cmp x0, #EC_AARCH64_SMC + b.ne $label + .endm + + /* + * Declare the exception vector table, enforcing it is aligned on a + * 2KB boundary, as required by the ARMv8 architecture. + * Use zero bytes as the fill value to be stored in the padding bytes + * so that it inserts illegal AArch64 instructions. This increases + * security, robustness and potentially facilitates debugging. + */ + .macro vector_base label, section_name=.vectors + .section \section_name, "ax" + .align 11, 0 + \label: + .endm + + /* + * Create an entry in the exception vector table, enforcing it is + * aligned on a 128-byte boundary, as required by the ARMv8 architecture. + * Use zero bytes as the fill value to be stored in the padding bytes + * so that it inserts illegal AArch64 instructions. This increases + * security, robustness and potentially facilitates debugging. + */ + .macro vector_entry label, section_name=.vectors + .cfi_sections .debug_frame + .section \section_name, "ax" + .align 7, 0 + .type \label, %function + .cfi_startproc + \label: + .endm + + /* + * Add the bytes until fill the full exception vector, whose size is always + * 32 instructions. If there are more than 32 instructions in the + * exception vector then an error is emitted. + */ + .macro end_vector_entry label + .cfi_endproc + .fill \label + (32 * 4) - . + .endm + + /* + * This macro calculates the base address of the current CPU's MP stack + * using the plat_my_core_pos() index, the name of the stack storage + * and the size of each stack + * Out: X0 = physical address of stack base + * Clobber: X30, X1, X2 + */ + .macro get_my_mp_stack _name, _size + bl plat_my_core_pos + adrp x2, (\_name + \_size) + add x2, x2, :lo12:(\_name + \_size) + mov x1, #\_size + madd x0, x0, x1, x2 + .endm + + /* + * This macro calculates the base address of a UP stack using the + * name of the stack storage and the size of the stack + * Out: X0 = physical address of stack base + */ + .macro get_up_stack _name, _size + adrp x0, (\_name + \_size) + add x0, x0, :lo12:(\_name + \_size) + .endm + + /* + * Helper macro to generate the best mov/movk combinations according + * the value to be moved. The 16 bits from '_shift' are tested and + * if not zero, they are moved into '_reg' without affecting + * other bits. + */ + .macro _mov_imm16 _reg, _val, _shift + .if (\_val >> \_shift) & 0xffff + .if (\_val & (1 << \_shift - 1)) + movk \_reg, (\_val >> \_shift) & 0xffff, LSL \_shift + .else + mov \_reg, \_val & (0xffff << \_shift) + .endif + .endif + .endm + + /* + * Helper macro to load arbitrary values into 32 or 64-bit registers + * which generates the best mov/movk combinations. Many base addresses + * are 64KB aligned the macro will eliminate updating bits 15:0 in + * that case + */ + .macro mov_imm _reg, _val + .if (\_val) == 0 + mov \_reg, #0 + .else + _mov_imm16 \_reg, (\_val), 0 + _mov_imm16 \_reg, (\_val), 16 + _mov_imm16 \_reg, (\_val), 32 + _mov_imm16 \_reg, (\_val), 48 + .endif + .endm + + /* + * Macro to mark instances where we're jumping to a function and don't + * expect a return. To provide the function being jumped to with + * additional information, we use 'bl' instruction to jump rather than + * 'b'. + * + * Debuggers infer the location of a call from where LR points to, which + * is usually the instruction after 'bl'. If this macro expansion + * happens to be the last location in a function, that'll cause the LR + * to point a location beyond the function, thereby misleading debugger + * back trace. We therefore insert a 'nop' after the function call for + * debug builds, unless 'skip_nop' parameter is non-zero. + */ + .macro no_ret _func:req, skip_nop=0 + bl \_func +#if DEBUG + .ifeq \skip_nop + nop + .endif +#endif + .endm + + /* + * Reserve space for a spin lock in assembly file. + */ + .macro define_asm_spinlock _name:req + .align SPINLOCK_ASM_ALIGN + \_name: + .space SPINLOCK_ASM_SIZE + .endm + + /* + * With RAS extension executes esb instruction, else NOP + */ + .macro esb + .inst 0xd503221f + .endm + + /* + * Helper macro to read system register value into x0 + */ + .macro read reg:req +#if ENABLE_BTI + bti j +#endif + mrs x0, \reg + ret + .endm + + /* + * Helper macro to write value from x1 to system register + */ + .macro write reg:req +#if ENABLE_BTI + bti j +#endif + msr \reg, x1 + ret + .endm + + /* + * The "sb" instruction was introduced later into the architecture, + * so not all toolchains understand it. Some deny its usage unless + * a supported processor is specified on the build command line. + * Use sb's system register encoding to work around this, we already + * guard the sb execution with a feature flag. + */ + + .macro sb_barrier_insn + msr SYSREG_SB, xzr + .endm + + /* + * Macro for using speculation barrier instruction introduced by + * FEAT_SB, if it's enabled. + */ + .macro speculation_barrier +#if ENABLE_FEAT_SB + sb_barrier_insn +#else + dsb sy + isb +#endif + .endm + + /* + * Macro for mitigating against speculative execution beyond ERET. Uses the + * speculation barrier instruction introduced by FEAT_SB, if it's enabled. + */ + .macro exception_return + eret +#if ENABLE_FEAT_SB + sb_barrier_insn +#else + dsb nsh + isb +#endif + .endm + + /* + * Macro to unmask External Aborts by changing PSTATE.A bit. + * Put explicit synchronization event to ensure newly unmasked interrupt + * is taken immediately. + */ + .macro unmask_async_ea + msr daifclr, #DAIF_ABT_BIT + isb + .endm + + /* Macro for error synchronization on exception boundries. + * With FEAT_RAS enabled, it is assumed that FEAT_IESB is also present + * and enabled. + * FEAT_IESB provides an implicit error synchronization event at exception + * entry and exception return, so there is no need for any explicit instruction. + */ + .macro synchronize_errors +#if !ENABLE_FEAT_RAS + /* Complete any stores that may return an abort */ + dsb sy + /* Synchronise the CPU context with the completion of the dsb */ + isb +#endif + .endm + +#endif /* ASM_MACROS_S */ diff --git a/include/arch/aarch64/assert_macros.S b/include/arch/aarch64/assert_macros.S new file mode 100644 index 0000000..06371c4 --- /dev/null +++ b/include/arch/aarch64/assert_macros.S @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2014-2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef ASSERT_MACROS_S +#define ASSERT_MACROS_S + + /* + * Assembler macro to enable asm_assert. Use this macro wherever + * assert is required in assembly. Please note that the macro makes + * use of label '300' to provide the logic and the caller + * should make sure that this label is not used to branch prior + * to calling this macro. + */ +#define ASM_ASSERT(_cc) \ +.ifndef .L_assert_filename ;\ + .pushsection .rodata.str1.1, "aS" ;\ + .L_assert_filename: ;\ + .string __FILE__ ;\ + .popsection ;\ +.endif ;\ + b._cc 300f ;\ + adr x0, .L_assert_filename ;\ + mov x1, __LINE__ ;\ + b asm_assert ;\ +300: + +#endif /* ASSERT_MACROS_S */ diff --git a/include/arch/aarch64/console_macros.S b/include/arch/aarch64/console_macros.S new file mode 100644 index 0000000..8adb9cd --- /dev/null +++ b/include/arch/aarch64/console_macros.S @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef CONSOLE_MACROS_S +#define CONSOLE_MACROS_S + +#include <drivers/console.h> + +/* + * This macro encapsulates the common setup that has to be done at the end of + * a console driver's register function. It will register all of the driver's + * callbacks in the console_t structure and initialize the flags field (by + * default consoles are enabled for the "boot" and "crash" states, this can be + * changed after registration with the console_set_scope() function). It ends + * with a tail call that will include return to the caller. + * REQUIRES console_t pointer in x0 and a valid return address in x30. + */ + .macro finish_console_register _driver, putc=0, getc=0, flush=0 + /* + * If any of the callback is not specified or set as 0, then the + * corresponding callback entry in console_t is set to 0. + */ + .ifne \putc + adrp x1, console_\_driver\()_putc + add x1, x1, :lo12:console_\_driver\()_putc + str x1, [x0, #CONSOLE_T_PUTC] + .else + str xzr, [x0, #CONSOLE_T_PUTC] + .endif + + /* + * If ENABLE_CONSOLE_GETC support is disabled, but a getc callback is + * specified nonetheless, the assembler will abort on encountering the + * CONSOLE_T_GETC macro, which is undefined. + */ + .ifne \getc + adrp x1, console_\_driver\()_getc + add x1, x1, :lo12:console_\_driver\()_getc + str x1, [x0, #CONSOLE_T_GETC] + .else +#if ENABLE_CONSOLE_GETC + str xzr, [x0, #CONSOLE_T_GETC] +#endif + .endif + + .ifne \flush + adrp x1, console_\_driver\()_flush + add x1, x1, :lo12:console_\_driver\()_flush + str x1, [x0, #CONSOLE_T_FLUSH] + .else + str xzr, [x0, #CONSOLE_T_FLUSH] + .endif + + mov x1, #(CONSOLE_FLAG_BOOT | CONSOLE_FLAG_CRASH) + str x1, [x0, #CONSOLE_T_FLAGS] + b console_register + .endm + +#endif /* CONSOLE_MACROS_S */ diff --git a/include/arch/aarch64/el2_common_macros.S b/include/arch/aarch64/el2_common_macros.S new file mode 100644 index 0000000..9609c0d --- /dev/null +++ b/include/arch/aarch64/el2_common_macros.S @@ -0,0 +1,418 @@ +/* + * Copyright (c) 2021-2023, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef EL2_COMMON_MACROS_S +#define EL2_COMMON_MACROS_S + +#include <arch.h> +#include <asm_macros.S> +#include <context.h> +#include <lib/xlat_tables/xlat_tables_defs.h> + +#include <platform_def.h> + + /* + * Helper macro to initialise system registers at EL2. + */ + .macro el2_arch_init_common + + /* --------------------------------------------------------------------- + * SCTLR_EL2 has already been initialised - read current value before + * modifying. + * + * SCTLR_EL2.I: Enable the instruction cache. + * + * SCTLR_EL2.SA: Enable Stack Alignment check. A SP alignment fault + * exception is generated if a load or store instruction executed at + * EL2 uses the SP as the base address and the SP is not aligned to a + * 16-byte boundary. + * + * SCTLR_EL2.A: Enable Alignment fault checking. All instructions that + * load or store one or more registers have an alignment check that the + * address being accessed is aligned to the size of the data element(s) + * being accessed. + * --------------------------------------------------------------------- + */ + mov x1, #(SCTLR_I_BIT | SCTLR_A_BIT | SCTLR_SA_BIT) + mrs x0, sctlr_el2 + orr x0, x0, x1 + msr sctlr_el2, x0 + isb + + /* --------------------------------------------------------------------- + * Initialise HCR_EL2, setting all fields rather than relying on HW. + * All fields are architecturally UNKNOWN on reset. The following fields + * do not change during the TF lifetime. The remaining fields are set to + * zero here but are updated ahead of transitioning to a lower EL in the + * function cm_init_context_common(). + * + * HCR_EL2.TWE: Set to zero so that execution of WFE instructions at + * EL2, EL1 and EL0 are not trapped to EL2. + * + * HCR_EL2.TWI: Set to zero so that execution of WFI instructions at + * EL2, EL1 and EL0 are not trapped to EL2. + * + * HCR_EL2.HCD: Set to zero to enable HVC calls at EL1 and above, + * from both Security states and both Execution states. + * + * HCR_EL2.TEA: Set to one to route External Aborts and SError + * Interrupts to EL2 when executing at any EL. + * + * HCR_EL2.{API,APK}: For Armv8.3 pointer authentication feature, + * disable traps to EL2 when accessing key registers or using + * pointer authentication instructions from lower ELs. + * --------------------------------------------------------------------- + */ + mov_imm x0, ((HCR_RESET_VAL | HCR_TEA_BIT) \ + & ~(HCR_TWE_BIT | HCR_TWI_BIT | HCR_HCD_BIT)) +#if CTX_INCLUDE_PAUTH_REGS + /* + * If the pointer authentication registers are saved during world + * switches, enable pointer authentication everywhere, as it is safe to + * do so. + */ + orr x0, x0, #(HCR_API_BIT | HCR_APK_BIT) +#endif /* CTX_INCLUDE_PAUTH_REGS */ + msr hcr_el2, x0 + + /* --------------------------------------------------------------------- + * Initialise MDCR_EL2, setting all fields rather than relying on + * hw. Some fields are architecturally UNKNOWN on reset. + * + * MDCR_EL2.TDOSA: Set to zero so that EL2 and EL2 System register + * access to the powerdown debug registers do not trap to EL2. + * + * MDCR_EL2.TDA: Set to zero to allow EL0, EL1 and EL2 access to the + * debug registers, other than those registers that are controlled by + * MDCR_EL2.TDOSA. + * + * MDCR_EL2.TPM: Set to zero so that EL0, EL1, and EL2 System + * register accesses to all Performance Monitors registers do not trap + * to EL2. + * + * MDCR_EL2.HPMD: Set to zero so that event counting by the program- + * mable counters PMEVCNTR<n>_EL0 is prohibited in Secure state. If + * ARMv8.2 Debug is not implemented this bit does not have any effect + * on the counters unless there is support for the implementation + * defined authentication interface + * ExternalSecureNoninvasiveDebugEnabled(). + * --------------------------------------------------------------------- + */ + mov_imm x0, ((MDCR_EL2_RESET_VAL | \ + MDCR_SPD32(MDCR_SPD32_DISABLE)) \ + & ~(MDCR_EL2_HPMD_BIT | MDCR_TDOSA_BIT | \ + MDCR_TDA_BIT | MDCR_TPM_BIT)) + + msr mdcr_el2, x0 + + /* --------------------------------------------------------------------- + * Initialise PMCR_EL0 setting all fields rather than relying + * on hw. Some fields are architecturally UNKNOWN on reset. + * + * PMCR_EL0.DP: Set to one so that the cycle counter, + * PMCCNTR_EL0 does not count when event counting is prohibited. + * + * PMCR_EL0.X: Set to zero to disable export of events. + * + * PMCR_EL0.D: Set to zero so that, when enabled, PMCCNTR_EL0 + * counts on every clock cycle. + * --------------------------------------------------------------------- + */ + mov_imm x0, ((PMCR_EL0_RESET_VAL | PMCR_EL0_DP_BIT) & \ + ~(PMCR_EL0_X_BIT | PMCR_EL0_D_BIT)) + + msr pmcr_el0, x0 + + /* --------------------------------------------------------------------- + * Enable External Aborts and SError Interrupts now that the exception + * vectors have been setup. + * --------------------------------------------------------------------- + */ + msr daifclr, #DAIF_ABT_BIT + + /* --------------------------------------------------------------------- + * Initialise CPTR_EL2, setting all fields rather than relying on hw. + * All fields are architecturally UNKNOWN on reset. + * + * CPTR_EL2.TCPAC: Set to zero so that any accesses to CPACR_EL1 do + * not trap to EL2. + * + * CPTR_EL2.TTA: Set to zero so that System register accesses to the + * trace registers do not trap to EL2. + * + * CPTR_EL2.TFP: Set to zero so that accesses to the V- or Z- registers + * by Advanced SIMD, floating-point or SVE instructions (if implemented) + * do not trap to EL2. + */ + + mov_imm x0, (CPTR_EL2_RESET_VAL & ~(TCPAC_BIT | TTA_BIT | TFP_BIT)) + msr cptr_el2, x0 + + /* + * If Data Independent Timing (DIT) functionality is implemented, + * always enable DIT in EL2 + */ + mrs x0, id_aa64pfr0_el1 + ubfx x0, x0, #ID_AA64PFR0_DIT_SHIFT, #ID_AA64PFR0_DIT_LENGTH + cmp x0, #ID_AA64PFR0_DIT_SUPPORTED + bne 1f + mov x0, #DIT_BIT + msr DIT, x0 +1: + .endm + +/* ----------------------------------------------------------------------------- + * This is the super set of actions that need to be performed during a cold boot + * or a warm boot in EL2. This code is shared by BL1 and BL31. + * + * This macro will always perform reset handling, architectural initialisations + * and stack setup. The rest of the actions are optional because they might not + * be needed, depending on the context in which this macro is called. This is + * why this macro is parameterised ; each parameter allows to enable/disable + * some actions. + * + * _init_sctlr: + * Whether the macro needs to initialise SCTLR_EL2, including configuring + * the endianness of data accesses. + * + * _warm_boot_mailbox: + * Whether the macro needs to detect the type of boot (cold/warm). The + * detection is based on the platform entrypoint address : if it is zero + * then it is a cold boot, otherwise it is a warm boot. In the latter case, + * this macro jumps on the platform entrypoint address. + * + * _secondary_cold_boot: + * Whether the macro needs to identify the CPU that is calling it: primary + * CPU or secondary CPU. The primary CPU will be allowed to carry on with + * the platform initialisations, while the secondaries will be put in a + * platform-specific state in the meantime. + * + * If the caller knows this macro will only be called by the primary CPU + * then this parameter can be defined to 0 to skip this step. + * + * _init_memory: + * Whether the macro needs to initialise the memory. + * + * _init_c_runtime: + * Whether the macro needs to initialise the C runtime environment. + * + * _exception_vectors: + * Address of the exception vectors to program in the VBAR_EL2 register. + * + * _pie_fixup_size: + * Size of memory region to fixup Global Descriptor Table (GDT). + * + * A non-zero value is expected when firmware needs GDT to be fixed-up. + * + * ----------------------------------------------------------------------------- + */ + .macro el2_entrypoint_common \ + _init_sctlr, _warm_boot_mailbox, _secondary_cold_boot, \ + _init_memory, _init_c_runtime, _exception_vectors, \ + _pie_fixup_size + + .if \_init_sctlr + /* ------------------------------------------------------------- + * This is the initialisation of SCTLR_EL2 and so must ensure + * that all fields are explicitly set rather than relying on hw. + * Some fields reset to an IMPLEMENTATION DEFINED value and + * others are architecturally UNKNOWN on reset. + * + * SCTLR.EE: Set the CPU endianness before doing anything that + * might involve memory reads or writes. Set to zero to select + * Little Endian. + * + * SCTLR_EL2.WXN: For the EL2 translation regime, this field can + * force all memory regions that are writeable to be treated as + * XN (Execute-never). Set to zero so that this control has no + * effect on memory access permissions. + * + * SCTLR_EL2.SA: Set to zero to disable Stack Alignment check. + * + * SCTLR_EL2.A: Set to zero to disable Alignment fault checking. + * + * SCTLR.DSSBS: Set to zero to disable speculation store bypass + * safe behaviour upon exception entry to EL2. + * ------------------------------------------------------------- + */ + mov_imm x0, (SCTLR_RESET_VAL & ~(SCTLR_EE_BIT | SCTLR_WXN_BIT \ + | SCTLR_SA_BIT | SCTLR_A_BIT | SCTLR_DSSBS_BIT)) + msr sctlr_el2, x0 + isb + .endif /* _init_sctlr */ + + .if \_warm_boot_mailbox + /* ------------------------------------------------------------- + * This code will be executed for both warm and cold resets. + * Now is the time to distinguish between the two. + * Query the platform entrypoint address and if it is not zero + * then it means it is a warm boot so jump to this address. + * ------------------------------------------------------------- + */ + bl plat_get_my_entrypoint + cbz x0, do_cold_boot + br x0 + + do_cold_boot: + .endif /* _warm_boot_mailbox */ + + .if \_pie_fixup_size +#if ENABLE_PIE + /* + * ------------------------------------------------------------ + * If PIE is enabled fixup the Global descriptor Table only + * once during primary core cold boot path. + * + * Compile time base address, required for fixup, is calculated + * using "pie_fixup" label present within first page. + * ------------------------------------------------------------ + */ + pie_fixup: + ldr x0, =pie_fixup + and x0, x0, #~(PAGE_SIZE_MASK) + mov_imm x1, \_pie_fixup_size + add x1, x1, x0 + bl fixup_gdt_reloc +#endif /* ENABLE_PIE */ + .endif /* _pie_fixup_size */ + + /* --------------------------------------------------------------------- + * Set the exception vectors. + * --------------------------------------------------------------------- + */ + adr x0, \_exception_vectors + msr vbar_el2, x0 + isb + + /* --------------------------------------------------------------------- + * It is a cold boot. + * Perform any processor specific actions upon reset e.g. cache, TLB + * invalidations etc. + * --------------------------------------------------------------------- + */ + bl reset_handler + + el2_arch_init_common + + .if \_secondary_cold_boot + /* ------------------------------------------------------------- + * Check if this is a primary or secondary CPU cold boot. + * The primary CPU will set up the platform while the + * secondaries are placed in a platform-specific state until the + * primary CPU performs the necessary actions to bring them out + * of that state and allows entry into the OS. + * ------------------------------------------------------------- + */ + bl plat_is_my_cpu_primary + cbnz w0, do_primary_cold_boot + + /* This is a cold boot on a secondary CPU */ + bl plat_secondary_cold_boot_setup + /* plat_secondary_cold_boot_setup() is not supposed to return */ + bl el2_panic + do_primary_cold_boot: + .endif /* _secondary_cold_boot */ + + /* --------------------------------------------------------------------- + * Initialize memory now. Secondary CPU initialization won't get to this + * point. + * --------------------------------------------------------------------- + */ + + .if \_init_memory + bl platform_mem_init + .endif /* _init_memory */ + + /* --------------------------------------------------------------------- + * Init C runtime environment: + * - Zero-initialise the NOBITS sections. There are 2 of them: + * - the .bss section; + * - the coherent memory section (if any). + * - Relocate the data section from ROM to RAM, if required. + * --------------------------------------------------------------------- + */ + .if \_init_c_runtime + adrp x0, __BSS_START__ + add x0, x0, :lo12:__BSS_START__ + + adrp x1, __BSS_END__ + add x1, x1, :lo12:__BSS_END__ + sub x1, x1, x0 + bl zeromem + +#if defined(IMAGE_BL1) || (defined(IMAGE_BL2) && \ + RESET_TO_BL2 && BL2_IN_XIP_MEM) + adrp x0, __DATA_RAM_START__ + add x0, x0, :lo12:__DATA_RAM_START__ + adrp x1, __DATA_ROM_START__ + add x1, x1, :lo12:__DATA_ROM_START__ + adrp x2, __DATA_RAM_END__ + add x2, x2, :lo12:__DATA_RAM_END__ + sub x2, x2, x0 + bl memcpy16 +#endif + .endif /* _init_c_runtime */ + + /* --------------------------------------------------------------------- + * Use SP_EL0 for the C runtime stack. + * --------------------------------------------------------------------- + */ + msr spsel, #0 + + /* --------------------------------------------------------------------- + * Allocate a stack whose memory will be marked as Normal-IS-WBWA when + * the MMU is enabled. There is no risk of reading stale stack memory + * after enabling the MMU as only the primary CPU is running at the + * moment. + * --------------------------------------------------------------------- + */ + bl plat_set_my_stack + +#if STACK_PROTECTOR_ENABLED + .if \_init_c_runtime + bl update_stack_protector_canary + .endif /* _init_c_runtime */ +#endif + .endm + + .macro apply_at_speculative_wa +#if ERRATA_SPECULATIVE_AT + /* + * This function expects x30 has been saved. + * Also, save x29 which will be used in the called function. + */ + str x29, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X29] + bl save_and_update_ptw_el1_sys_regs + ldr x29, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X29] +#endif + .endm + + .macro restore_ptw_el1_sys_regs +#if ERRATA_SPECULATIVE_AT + /* ----------------------------------------------------------- + * In case of ERRATA_SPECULATIVE_AT, must follow below order + * to ensure that page table walk is not enabled until + * restoration of all EL1 system registers. TCR_EL1 register + * should be updated at the end which restores previous page + * table walk setting of stage1 i.e.(TCR_EL1.EPDx) bits. ISB + * ensures that CPU does below steps in order. + * + * 1. Ensure all other system registers are written before + * updating SCTLR_EL1 using ISB. + * 2. Restore SCTLR_EL1 register. + * 3. Ensure SCTLR_EL1 written successfully using ISB. + * 4. Restore TCR_EL1 register. + * ----------------------------------------------------------- + */ + isb + ldp x28, x29, [sp, #CTX_EL1_SYSREGS_OFFSET + CTX_SCTLR_EL1] + msr sctlr_el1, x28 + isb + msr tcr_el1, x29 +#endif + .endm + +#endif /* EL2_COMMON_MACROS_S */ diff --git a/include/arch/aarch64/el3_common_macros.S b/include/arch/aarch64/el3_common_macros.S new file mode 100644 index 0000000..a78837f --- /dev/null +++ b/include/arch/aarch64/el3_common_macros.S @@ -0,0 +1,464 @@ +/* + * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef EL3_COMMON_MACROS_S +#define EL3_COMMON_MACROS_S + +#include <arch.h> +#include <asm_macros.S> +#include <assert_macros.S> +#include <context.h> +#include <lib/xlat_tables/xlat_tables_defs.h> + + /* + * Helper macro to initialise EL3 registers we care about. + */ + .macro el3_arch_init_common + /* --------------------------------------------------------------------- + * SCTLR_EL3 has already been initialised - read current value before + * modifying. + * + * SCTLR_EL3.I: Enable the instruction cache. + * + * SCTLR_EL3.SA: Enable Stack Alignment check. A SP alignment fault + * exception is generated if a load or store instruction executed at + * EL3 uses the SP as the base address and the SP is not aligned to a + * 16-byte boundary. + * + * SCTLR_EL3.A: Enable Alignment fault checking. All instructions that + * load or store one or more registers have an alignment check that the + * address being accessed is aligned to the size of the data element(s) + * being accessed. + * --------------------------------------------------------------------- + */ + mov x1, #(SCTLR_I_BIT | SCTLR_A_BIT | SCTLR_SA_BIT) + mrs x0, sctlr_el3 + orr x0, x0, x1 + msr sctlr_el3, x0 + isb + +#ifdef IMAGE_BL31 + /* --------------------------------------------------------------------- + * Initialise the per-cpu cache pointer to the CPU. + * This is done early to enable crash reporting to have access to crash + * stack. Since crash reporting depends on cpu_data to report the + * unhandled exception, not doing so can lead to recursive exceptions + * due to a NULL TPIDR_EL3. + * --------------------------------------------------------------------- + */ + bl init_cpu_data_ptr +#endif /* IMAGE_BL31 */ + + /* --------------------------------------------------------------------- + * Initialise SCR_EL3, setting all fields rather than relying on hw. + * All fields are architecturally UNKNOWN on reset. The following fields + * do not change during the TF lifetime. The remaining fields are set to + * zero here but are updated ahead of transitioning to a lower EL in the + * function cm_init_context_common(). + * + * SCR_EL3.SIF: Set to one to disable instruction fetches from + * Non-secure memory. + * + * SCR_EL3.EA: Set to one to route External Aborts and SError Interrupts + * to EL3 when executing at any EL. + * --------------------------------------------------------------------- + */ + mov_imm x0, (SCR_RESET_VAL | SCR_EA_BIT | SCR_SIF_BIT) + msr scr_el3, x0 + + /* --------------------------------------------------------------------- + * Initialise MDCR_EL3, setting all fields rather than relying on hw. + * Some fields are architecturally UNKNOWN on reset. + * + * MDCR_EL3.SDD: Set to one to disable AArch64 Secure self-hosted debug. + * Debug exceptions, other than Breakpoint Instruction exceptions, are + * disabled from all ELs in Secure state. + * + * MDCR_EL3.SPD32: Set to 0b10 to disable AArch32 Secure self-hosted + * privileged debug from S-EL1. + * + * MDCR_EL3.TDOSA: Set to zero so that EL2 and EL2 System register + * access to the powerdown debug registers do not trap to EL3. + * + * MDCR_EL3.TDA: Set to zero to allow EL0, EL1 and EL2 access to the + * debug registers, other than those registers that are controlled by + * MDCR_EL3.TDOSA. + */ + mov_imm x0, ((MDCR_EL3_RESET_VAL | MDCR_SDD_BIT | \ + MDCR_SPD32(MDCR_SPD32_DISABLE)) & \ + ~(MDCR_TDOSA_BIT | MDCR_TDA_BIT)) + + msr mdcr_el3, x0 + + /* --------------------------------------------------------------------- + * Enable External Aborts and SError Interrupts now that the exception + * vectors have been setup. + * --------------------------------------------------------------------- + */ + msr daifclr, #DAIF_ABT_BIT + + /* --------------------------------------------------------------------- + * Initialise CPTR_EL3, setting all fields rather than relying on hw. + * All fields are architecturally UNKNOWN on reset. + * --------------------------------------------------------------------- + */ + mov_imm x0, CPTR_EL3_RESET_VAL + msr cptr_el3, x0 + + /* + * If Data Independent Timing (DIT) functionality is implemented, + * always enable DIT in EL3. + * First assert that the FEAT_DIT build flag matches the feature id + * register value for DIT. + */ +#if ENABLE_FEAT_DIT +#if ENABLE_ASSERTIONS || ENABLE_FEAT_DIT > 1 + mrs x0, id_aa64pfr0_el1 + ubfx x0, x0, #ID_AA64PFR0_DIT_SHIFT, #ID_AA64PFR0_DIT_LENGTH +#if ENABLE_FEAT_DIT > 1 + cbz x0, 1f +#else + cmp x0, #ID_AA64PFR0_DIT_SUPPORTED + ASM_ASSERT(eq) +#endif + +#endif /* ENABLE_ASSERTIONS */ + mov x0, #DIT_BIT + msr DIT, x0 +1: +#endif + .endm + +/* ----------------------------------------------------------------------------- + * This is the super set of actions that need to be performed during a cold boot + * or a warm boot in EL3. This code is shared by BL1 and BL31. + * + * This macro will always perform reset handling, architectural initialisations + * and stack setup. The rest of the actions are optional because they might not + * be needed, depending on the context in which this macro is called. This is + * why this macro is parameterised ; each parameter allows to enable/disable + * some actions. + * + * _init_sctlr: + * Whether the macro needs to initialise SCTLR_EL3, including configuring + * the endianness of data accesses. + * + * _warm_boot_mailbox: + * Whether the macro needs to detect the type of boot (cold/warm). The + * detection is based on the platform entrypoint address : if it is zero + * then it is a cold boot, otherwise it is a warm boot. In the latter case, + * this macro jumps on the platform entrypoint address. + * + * _secondary_cold_boot: + * Whether the macro needs to identify the CPU that is calling it: primary + * CPU or secondary CPU. The primary CPU will be allowed to carry on with + * the platform initialisations, while the secondaries will be put in a + * platform-specific state in the meantime. + * + * If the caller knows this macro will only be called by the primary CPU + * then this parameter can be defined to 0 to skip this step. + * + * _init_memory: + * Whether the macro needs to initialise the memory. + * + * _init_c_runtime: + * Whether the macro needs to initialise the C runtime environment. + * + * _exception_vectors: + * Address of the exception vectors to program in the VBAR_EL3 register. + * + * _pie_fixup_size: + * Size of memory region to fixup Global Descriptor Table (GDT). + * + * A non-zero value is expected when firmware needs GDT to be fixed-up. + * + * ----------------------------------------------------------------------------- + */ + .macro el3_entrypoint_common \ + _init_sctlr, _warm_boot_mailbox, _secondary_cold_boot, \ + _init_memory, _init_c_runtime, _exception_vectors, \ + _pie_fixup_size + + .if \_init_sctlr + /* ------------------------------------------------------------- + * This is the initialisation of SCTLR_EL3 and so must ensure + * that all fields are explicitly set rather than relying on hw. + * Some fields reset to an IMPLEMENTATION DEFINED value and + * others are architecturally UNKNOWN on reset. + * + * SCTLR.EE: Set the CPU endianness before doing anything that + * might involve memory reads or writes. Set to zero to select + * Little Endian. + * + * SCTLR_EL3.WXN: For the EL3 translation regime, this field can + * force all memory regions that are writeable to be treated as + * XN (Execute-never). Set to zero so that this control has no + * effect on memory access permissions. + * + * SCTLR_EL3.SA: Set to zero to disable Stack Alignment check. + * + * SCTLR_EL3.A: Set to zero to disable Alignment fault checking. + * + * SCTLR.DSSBS: Set to zero to disable speculation store bypass + * safe behaviour upon exception entry to EL3. + * ------------------------------------------------------------- + */ + mov_imm x0, (SCTLR_RESET_VAL & ~(SCTLR_EE_BIT | SCTLR_WXN_BIT \ + | SCTLR_SA_BIT | SCTLR_A_BIT | SCTLR_DSSBS_BIT)) +#if ENABLE_FEAT_RAS + /* If FEAT_RAS is present assume FEAT_IESB is also present */ + orr x0, x0, #SCTLR_IESB_BIT +#endif + msr sctlr_el3, x0 + isb + .endif /* _init_sctlr */ + + .if \_warm_boot_mailbox + /* ------------------------------------------------------------- + * This code will be executed for both warm and cold resets. + * Now is the time to distinguish between the two. + * Query the platform entrypoint address and if it is not zero + * then it means it is a warm boot so jump to this address. + * ------------------------------------------------------------- + */ + bl plat_get_my_entrypoint + cbz x0, do_cold_boot + br x0 + + do_cold_boot: + .endif /* _warm_boot_mailbox */ + + .if \_pie_fixup_size +#if ENABLE_PIE + /* + * ------------------------------------------------------------ + * If PIE is enabled fixup the Global descriptor Table only + * once during primary core cold boot path. + * + * Compile time base address, required for fixup, is calculated + * using "pie_fixup" label present within first page. + * ------------------------------------------------------------ + */ + pie_fixup: + ldr x0, =pie_fixup + and x0, x0, #~(PAGE_SIZE_MASK) + mov_imm x1, \_pie_fixup_size + add x1, x1, x0 + bl fixup_gdt_reloc +#endif /* ENABLE_PIE */ + .endif /* _pie_fixup_size */ + + /* --------------------------------------------------------------------- + * Set the exception vectors. + * --------------------------------------------------------------------- + */ + adr x0, \_exception_vectors + msr vbar_el3, x0 + isb + +#if !(defined(IMAGE_BL2) && ENABLE_RME) + /* --------------------------------------------------------------------- + * It is a cold boot. + * Perform any processor specific actions upon reset e.g. cache, TLB + * invalidations etc. + * --------------------------------------------------------------------- + */ + bl reset_handler +#endif + + el3_arch_init_common + + .if \_secondary_cold_boot + /* ------------------------------------------------------------- + * Check if this is a primary or secondary CPU cold boot. + * The primary CPU will set up the platform while the + * secondaries are placed in a platform-specific state until the + * primary CPU performs the necessary actions to bring them out + * of that state and allows entry into the OS. + * ------------------------------------------------------------- + */ + bl plat_is_my_cpu_primary + cbnz w0, do_primary_cold_boot + + /* This is a cold boot on a secondary CPU */ + bl plat_secondary_cold_boot_setup + /* plat_secondary_cold_boot_setup() is not supposed to return */ + bl el3_panic + + do_primary_cold_boot: + .endif /* _secondary_cold_boot */ + + /* --------------------------------------------------------------------- + * Initialize memory now. Secondary CPU initialization won't get to this + * point. + * --------------------------------------------------------------------- + */ + + .if \_init_memory + bl platform_mem_init + .endif /* _init_memory */ + + /* --------------------------------------------------------------------- + * Init C runtime environment: + * - Zero-initialise the NOBITS sections. There are 2 of them: + * - the .bss section; + * - the coherent memory section (if any). + * - Relocate the data section from ROM to RAM, if required. + * --------------------------------------------------------------------- + */ + .if \_init_c_runtime +#if defined(IMAGE_BL31) || (defined(IMAGE_BL2) && \ + ((RESET_TO_BL2 && BL2_INV_DCACHE) || ENABLE_RME)) + /* ------------------------------------------------------------- + * Invalidate the RW memory used by the BL31 image. This + * includes the data and NOBITS sections. This is done to + * safeguard against possible corruption of this memory by + * dirty cache lines in a system cache as a result of use by + * an earlier boot loader stage. If PIE is enabled however, + * RO sections including the GOT may be modified during + * pie fixup. Therefore, to be on the safe side, invalidate + * the entire image region if PIE is enabled. + * ------------------------------------------------------------- + */ +#if ENABLE_PIE +#if SEPARATE_CODE_AND_RODATA + adrp x0, __TEXT_START__ + add x0, x0, :lo12:__TEXT_START__ +#else + adrp x0, __RO_START__ + add x0, x0, :lo12:__RO_START__ +#endif /* SEPARATE_CODE_AND_RODATA */ +#else + adrp x0, __RW_START__ + add x0, x0, :lo12:__RW_START__ +#endif /* ENABLE_PIE */ + adrp x1, __RW_END__ + add x1, x1, :lo12:__RW_END__ + sub x1, x1, x0 + bl inv_dcache_range +#if defined(IMAGE_BL31) && SEPARATE_NOBITS_REGION + adrp x0, __NOBITS_START__ + add x0, x0, :lo12:__NOBITS_START__ + adrp x1, __NOBITS_END__ + add x1, x1, :lo12:__NOBITS_END__ + sub x1, x1, x0 + bl inv_dcache_range +#endif +#if defined(IMAGE_BL2) && SEPARATE_BL2_NOLOAD_REGION + adrp x0, __BL2_NOLOAD_START__ + add x0, x0, :lo12:__BL2_NOLOAD_START__ + adrp x1, __BL2_NOLOAD_END__ + add x1, x1, :lo12:__BL2_NOLOAD_END__ + sub x1, x1, x0 + bl inv_dcache_range +#endif +#endif + adrp x0, __BSS_START__ + add x0, x0, :lo12:__BSS_START__ + + adrp x1, __BSS_END__ + add x1, x1, :lo12:__BSS_END__ + sub x1, x1, x0 + bl zeromem + +#if USE_COHERENT_MEM + adrp x0, __COHERENT_RAM_START__ + add x0, x0, :lo12:__COHERENT_RAM_START__ + adrp x1, __COHERENT_RAM_END_UNALIGNED__ + add x1, x1, :lo12: __COHERENT_RAM_END_UNALIGNED__ + sub x1, x1, x0 + bl zeromem +#endif + +#if defined(IMAGE_BL1) || \ + (defined(IMAGE_BL2) && RESET_TO_BL2 && BL2_IN_XIP_MEM) + adrp x0, __DATA_RAM_START__ + add x0, x0, :lo12:__DATA_RAM_START__ + adrp x1, __DATA_ROM_START__ + add x1, x1, :lo12:__DATA_ROM_START__ + adrp x2, __DATA_RAM_END__ + add x2, x2, :lo12:__DATA_RAM_END__ + sub x2, x2, x0 + bl memcpy16 +#endif + .endif /* _init_c_runtime */ + + /* --------------------------------------------------------------------- + * Use SP_EL0 for the C runtime stack. + * --------------------------------------------------------------------- + */ + msr spsel, #0 + + /* --------------------------------------------------------------------- + * Allocate a stack whose memory will be marked as Normal-IS-WBWA when + * the MMU is enabled. There is no risk of reading stale stack memory + * after enabling the MMU as only the primary CPU is running at the + * moment. + * --------------------------------------------------------------------- + */ + bl plat_set_my_stack + +#if STACK_PROTECTOR_ENABLED + .if \_init_c_runtime + bl update_stack_protector_canary + .endif /* _init_c_runtime */ +#endif + .endm + + .macro apply_at_speculative_wa +#if ERRATA_SPECULATIVE_AT + /* + * This function expects x30 has been saved. + * Also, save x29 which will be used in the called function. + */ + str x29, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X29] + bl save_and_update_ptw_el1_sys_regs + ldr x29, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_X29] +#endif + .endm + + .macro restore_ptw_el1_sys_regs +#if ERRATA_SPECULATIVE_AT + /* ----------------------------------------------------------- + * In case of ERRATA_SPECULATIVE_AT, must follow below order + * to ensure that page table walk is not enabled until + * restoration of all EL1 system registers. TCR_EL1 register + * should be updated at the end which restores previous page + * table walk setting of stage1 i.e.(TCR_EL1.EPDx) bits. ISB + * ensures that CPU does below steps in order. + * + * 1. Ensure all other system registers are written before + * updating SCTLR_EL1 using ISB. + * 2. Restore SCTLR_EL1 register. + * 3. Ensure SCTLR_EL1 written successfully using ISB. + * 4. Restore TCR_EL1 register. + * ----------------------------------------------------------- + */ + isb + ldp x28, x29, [sp, #CTX_EL1_SYSREGS_OFFSET + CTX_SCTLR_EL1] + msr sctlr_el1, x28 + isb + msr tcr_el1, x29 +#endif + .endm + +/* ----------------------------------------------------------------- + * The below macro reads SCR_EL3 from the context structure to + * determine the security state of the context upon ERET. + * ------------------------------------------------------------------ + */ + .macro get_security_state _ret:req, _scr_reg:req + ubfx \_ret, \_scr_reg, #SCR_NSE_SHIFT, #1 + cmp \_ret, #1 + beq realm_state + bfi \_ret, \_scr_reg, #0, #1 + b end + realm_state: + mov \_ret, #2 + end: + .endm + +#endif /* EL3_COMMON_MACROS_S */ diff --git a/include/arch/aarch64/smccc_helpers.h b/include/arch/aarch64/smccc_helpers.h new file mode 100644 index 0000000..950a811 --- /dev/null +++ b/include/arch/aarch64/smccc_helpers.h @@ -0,0 +1,162 @@ +/* + * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef SMCCC_HELPERS_H +#define SMCCC_HELPERS_H + +#include <lib/smccc.h> + +/* Definitions to help the assembler access the SMC/ERET args structure */ +#define SMC_ARGS_SIZE 0x40 +#define SMC_ARG0 0x0 +#define SMC_ARG1 0x8 +#define SMC_ARG2 0x10 +#define SMC_ARG3 0x18 +#define SMC_ARG4 0x20 +#define SMC_ARG5 0x28 +#define SMC_ARG6 0x30 +#define SMC_ARG7 0x38 +#define SMC_ARGS_END 0x40 + +#ifndef __ASSEMBLER__ + +#include <stdbool.h> + +#include <context.h> + +#include <platform_def.h> /* For CACHE_WRITEBACK_GRANULE */ + +/* Convenience macros to return from SMC handler */ +#define SMC_RET0(_h) { \ + return (uint64_t) (_h); \ +} +#define SMC_RET1(_h, _x0) { \ + write_ctx_reg((get_gpregs_ctx(_h)), (CTX_GPREG_X0), (_x0)); \ + SMC_RET0(_h); \ +} +#define SMC_RET2(_h, _x0, _x1) { \ + write_ctx_reg((get_gpregs_ctx(_h)), (CTX_GPREG_X1), (_x1)); \ + SMC_RET1(_h, (_x0)); \ +} +#define SMC_RET3(_h, _x0, _x1, _x2) { \ + write_ctx_reg((get_gpregs_ctx(_h)), (CTX_GPREG_X2), (_x2)); \ + SMC_RET2(_h, (_x0), (_x1)); \ +} +#define SMC_RET4(_h, _x0, _x1, _x2, _x3) { \ + write_ctx_reg((get_gpregs_ctx(_h)), (CTX_GPREG_X3), (_x3)); \ + SMC_RET3(_h, (_x0), (_x1), (_x2)); \ +} +#define SMC_RET5(_h, _x0, _x1, _x2, _x3, _x4) { \ + write_ctx_reg((get_gpregs_ctx(_h)), (CTX_GPREG_X4), (_x4)); \ + SMC_RET4(_h, (_x0), (_x1), (_x2), (_x3)); \ +} +#define SMC_RET6(_h, _x0, _x1, _x2, _x3, _x4, _x5) { \ + write_ctx_reg((get_gpregs_ctx(_h)), (CTX_GPREG_X5), (_x5)); \ + SMC_RET5(_h, (_x0), (_x1), (_x2), (_x3), (_x4)); \ +} +#define SMC_RET7(_h, _x0, _x1, _x2, _x3, _x4, _x5, _x6) { \ + write_ctx_reg((get_gpregs_ctx(_h)), (CTX_GPREG_X6), (_x6)); \ + SMC_RET6(_h, (_x0), (_x1), (_x2), (_x3), (_x4), (_x5)); \ +} +#define SMC_RET8(_h, _x0, _x1, _x2, _x3, _x4, _x5, _x6, _x7) { \ + write_ctx_reg((get_gpregs_ctx(_h)), (CTX_GPREG_X7), (_x7)); \ + SMC_RET7(_h, (_x0), (_x1), (_x2), (_x3), (_x4), (_x5), (_x6)); \ +} + +/* + * Convenience macros to access general purpose registers using handle provided + * to SMC handler. These take the offset values defined in context.h + */ +#define SMC_GET_GP(_h, _g) \ + read_ctx_reg((get_gpregs_ctx(_h)), (_g)) +#define SMC_SET_GP(_h, _g, _v) \ + write_ctx_reg((get_gpregs_ctx(_h)), (_g), (_v)) + + +/* Useful for SMCCCv1.2 */ +#define SMC_RET18(_h, _x0, _x1, _x2, _x3, _x4, _x5, _x6, _x7, _x8, _x9, \ + _x10, _x11, _x12, _x13, _x14, _x15, _x16, _x17) { \ + SMC_SET_GP(_h, CTX_GPREG_X8, _x8); \ + SMC_SET_GP(_h, CTX_GPREG_X9, _x9); \ + SMC_SET_GP(_h, CTX_GPREG_X10, _x10); \ + SMC_SET_GP(_h, CTX_GPREG_X11, _x11); \ + SMC_SET_GP(_h, CTX_GPREG_X12, _x12); \ + SMC_SET_GP(_h, CTX_GPREG_X13, _x13); \ + SMC_SET_GP(_h, CTX_GPREG_X14, _x14); \ + SMC_SET_GP(_h, CTX_GPREG_X15, _x15); \ + SMC_SET_GP(_h, CTX_GPREG_X16, _x16); \ + SMC_SET_GP(_h, CTX_GPREG_X17, _x17); \ + SMC_RET8(_h, (_x0), (_x1), (_x2), (_x3), (_x4), (_x5), (_x6), \ + (_x7)); \ +} + +/* + * Convenience macros to access EL3 context registers using handle provided to + * SMC handler. These take the offset values defined in context.h + */ +#define SMC_GET_EL3(_h, _e) \ + read_ctx_reg((get_el3state_ctx(_h)), (_e)) +#define SMC_SET_EL3(_h, _e, _v) \ + write_ctx_reg((get_el3state_ctx(_h)), (_e), (_v)) + +/* + * Helper macro to retrieve the SMC parameters from cpu_context_t. + */ +#define get_smc_params_from_ctx(_hdl, _x1, _x2, _x3, _x4) \ + do { \ + const gp_regs_t *regs = get_gpregs_ctx(_hdl); \ + _x1 = read_ctx_reg(regs, CTX_GPREG_X1); \ + _x2 = read_ctx_reg(regs, CTX_GPREG_X2); \ + _x3 = read_ctx_reg(regs, CTX_GPREG_X3); \ + _x4 = read_ctx_reg(regs, CTX_GPREG_X4); \ + } while (false) + +typedef struct { + uint64_t _regs[SMC_ARGS_END >> 3]; +} __aligned(CACHE_WRITEBACK_GRANULE) smc_args_t; + +/* + * Ensure that the assembler's view of the size of the tsp_args is the + * same as the compilers. + */ +CASSERT(sizeof(smc_args_t) == SMC_ARGS_SIZE, assert_sp_args_size_mismatch); + +static inline smc_args_t smc_helper(uint32_t func, uint64_t arg0, + uint64_t arg1, uint64_t arg2, + uint64_t arg3, uint64_t arg4, + uint64_t arg5, uint64_t arg6) +{ + smc_args_t ret_args = {0}; + + register uint64_t r0 __asm__("x0") = func; + register uint64_t r1 __asm__("x1") = arg0; + register uint64_t r2 __asm__("x2") = arg1; + register uint64_t r3 __asm__("x3") = arg2; + register uint64_t r4 __asm__("x4") = arg3; + register uint64_t r5 __asm__("x5") = arg4; + register uint64_t r6 __asm__("x6") = arg5; + register uint64_t r7 __asm__("x7") = arg6; + + /* Output registers, also used as inputs ('+' constraint). */ + __asm__ volatile("smc #0" + : "+r"(r0), "+r"(r1), "+r"(r2), "+r"(r3), "+r"(r4), + "+r"(r5), "+r"(r6), "+r"(r7)); + + ret_args._regs[0] = r0; + ret_args._regs[1] = r1; + ret_args._regs[2] = r2; + ret_args._regs[3] = r3; + ret_args._regs[4] = r4; + ret_args._regs[5] = r5; + ret_args._regs[6] = r6; + ret_args._regs[7] = r7; + + return ret_args; +} + +#endif /*__ASSEMBLER__*/ + +#endif /* SMCCC_HELPERS_H */ |